npm run dev時にnode_modulesのdate-fnsで「Module parse failed: Unexpected token」
今回はNuxt.js+date-fnsを使っていて、下記のエラーが起きたときの対処法についてご紹介いたします。(エラーは長いです)
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ERROR Failed to compile with 44 errors friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/intervalToDuration.mjs friendly-errors 12:31:13 AM Can't import the named export 'differenceInHours' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/intervalToDuration.mjs friendly-errors 12:31:13 AM Can't import the named export 'differenceInMinutes' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/intervalToDuration.mjs friendly-errors 12:31:13 AM Can't import the named export 'differenceInSeconds' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/eachWeekendOfInterval.mjs friendly-errors 12:31:13 AM Can't import the named export 'eachDayOfInterval' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/endOfISOWeek.mjs friendly-errors 12:31:13 AM Can't import the named export 'endOfWeek' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatDistanceToNow.mjs friendly-errors 12:31:13 AM Can't import the named export 'formatDistance' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatDistanceToNowStrict.mjs friendly-errors 12:31:13 AM Can't import the named export 'formatDistanceStrict' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/lastDayOfISOWeek.mjs friendly-errors 12:31:13 AM Can't import the named export 'lastDayOfWeek' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/isMatch.mjs friendly-errors 12:31:13 AM Can't import the named export 'parse' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/startOfISOWeek.mjs friendly-errors 12:31:13 AM Can't import the named export 'startOfWeek' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/getWeek.mjs friendly-errors 12:31:13 AM Can't import the named export 'startOfWeekYear' from non EcmaScript module (only default export is available) friendly-errors 12:31:13 AM friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatDistanceStrict.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (104:25) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | export function formatDistanceStrict(date, baseDate, options) { | const defaultOptions = getDefaultOptions(); > const locale = options?.locale ?? defaultOptions.locale ?? defaultLocale; | | const comparison = compareAsc(date, baseDate); friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 67:0-43 67:0-43 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/intlFormat.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (116:47) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | } | > return new Intl.DateTimeFormat(localeOptions?.locale, formatOptions).format( | toDate(date), | ); friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 108:0-33 108:0-33 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/intlFormatDistance.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (133:15) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | const dateRight = toDate(baseDate); | > if (!options?.unit) { | // Get the unit based on diffInSeconds calculations if no unit is specified | const diffInSeconds = differenceInSeconds(dateLeft, dateRight); // The smallest unit friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 109:0-41 109:0-41 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/differenceInQuarters.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (31:35) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | export function differenceInQuarters(dateLeft, dateRight, options) { | const diff = differenceInMonths(dateLeft, dateRight) / 3; > return getRoundingMethod(options?.roundingMethod)(diff); | } | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 37:0-43 37:0-43 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/format.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (333:25) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | export function format(date, formatStr, options) { | const defaultOptions = getDefaultOptions(); > const locale = options?.locale ?? defaultOptions.locale ?? defaultLocale; | | const firstWeekContainsDate = friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 65:0-29 65:0-29 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/getWeekOfMonth.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (33:12) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | const defaultOptions = getDefaultOptions(); | const weekStartsOn = > options?.weekStartsOn ?? | options?.locale?.options?.weekStartsOn ?? | defaultOptions.weekStartsOn ?? friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 99:0-37 99:0-37 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/parse.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (345:25) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | export function parse(dateStr, formatStr, referenceDate, options) { | const defaultOptions = getDefaultOptions(); > const locale = options?.locale ?? defaultOptions.locale ?? defaultLocale; | | const firstWeekContainsDate = friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 179:0-28 179:0-28 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/interval.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (34:14) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | if (isNaN(+_end)) throw new TypeError("End date is invalid"); | > if (options?.assertPositive && +_start > +_end) | throw new TypeError("End date must be after start date"); | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 106:0-31 106:0-31 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/differenceInSeconds.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (35:35) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | export function differenceInSeconds(dateLeft, dateRight, options) { | const diff = differenceInMilliseconds(dateLeft, dateRight) / 1000; > return getRoundingMethod(options?.roundingMethod)(diff); | } | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/intervalToDuration.mjs 6:0-64 63:18-37 @ ./node_modules/date-fns/index.mjs @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/differenceInHours.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (36:35) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | const diff = | differenceInMilliseconds(dateLeft, dateRight) / millisecondsInHour; > return getRoundingMethod(options?.roundingMethod)(diff); | } | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/intervalToDuration.mjs 3:0-60 53:16-33 @ ./node_modules/date-fns/index.mjs @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/startOfWeek.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (37:12) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | const defaultOptions = getDefaultOptions(); | const weekStartsOn = > options?.weekStartsOn ?? | options?.locale?.options?.weekStartsOn ?? | defaultOptions.weekStartsOn ?? friendly-errors 12:31:13 AM @ ./node_modules/date-fns/startOfISOWeek.mjs 1:0-48 26:9-20 @ ./node_modules/date-fns/getISOWeekYear.mjs @ ./node_modules/date-fns/addISOWeekYears.mjs @ ./node_modules/date-fns/subISOWeekYears.mjs @ ./node_modules/date-fns/index.mjs @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/setDay.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (38:12) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | const defaultOptions = getDefaultOptions(); | const weekStartsOn = > options?.weekStartsOn ?? | options?.locale?.options?.weekStartsOn ?? | defaultOptions.weekStartsOn ?? friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 199:0-29 199:0-29 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/parseISO.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (40:35) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | */ | export function parseISO(argument, options) { > const additionalDigits = options?.additionalDigits ?? 2; | const dateStrings = splitDateString(argument); | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 180:0-31 180:0-31 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/eachYearOfInterval.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (44:21) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | currentDate.setMonth(0, 1); | > let step = options?.step ?? 1; | if (!step) return []; | if (step < 0) { friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 50:0-41 50:0-41 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/differenceInMinutes.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (44:35) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | const diff = | differenceInMilliseconds(dateLeft, dateRight) / millisecondsInMinute; > return getRoundingMethod(options?.roundingMethod)(diff); | } | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/intervalToDuration.mjs 4:0-64 58:18-37 @ ./node_modules/date-fns/index.mjs @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/eachDayOfInterval.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (45:21) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | currentDate.setHours(0, 0, 0, 0); | > let step = options?.step ?? 1; | if (!step) return []; | if (step < 0) { friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 41:0-40 41:0-40 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/eachHourOfInterval.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (45:21) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | currentDate.setMinutes(0, 0, 0); | > let step = options?.step ?? 1; | if (!step) return []; | if (step < 0) { friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 42:0-41 42:0-41 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/eachMinuteOfInterval.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (45:21) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | let currentDate = reversed ? endDate : startDate; | > let step = options?.step ?? 1; | if (!step) return []; | if (step < 0) { friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 43:0-43 43:0-43 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatRFC3339.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (45:33) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | } | > const fractionDigits = options?.fractionDigits ?? 0; | | const day = addLeadingZeros(_date.getDate(), 2); friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 74:0-36 74:0-36 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/roundToNearestMinutes.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (46:28) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | */ | export function roundToNearestMinutes(date, options) { > const nearestTo = options?.nearestTo ?? 1; | | if (nearestTo < 1 || nearestTo > 30) return constructFrom(date, NaN); friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 193:0-44 193:0-44 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/eachQuarterOfInterval.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (47:21) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | : startOfQuarter(startDate); | > let step = options?.step ?? 1; | if (!step) return []; | if (step < 0) { friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 45:0-44 45:0-44 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/eachMonthOfInterval.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (47:21) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | currentDate.setDate(1); | > let step = options?.step ?? 1; | if (!step) return []; | if (step < 0) { friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 44:0-42 44:0-42 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/startOfWeekYear.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (49:12) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | const defaultOptions = getDefaultOptions(); | const firstWeekContainsDate = > options?.firstWeekContainsDate ?? | options?.locale?.options?.firstWeekContainsDate ?? | defaultOptions.firstWeekContainsDate ?? friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 226:0-38 226:0-38 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/roundToNearestHours.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (51:28) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | */ | export function roundToNearestHours(date, options) { > const nearestTo = options?.nearestTo ?? 1; | | if (nearestTo < 1 || nearestTo > 12) return constructFrom(date, NaN); friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 192:0-42 192:0-42 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/setWeekYear.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (52:12) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | const defaultOptions = getDefaultOptions(); | const firstWeekContainsDate = > options?.firstWeekContainsDate ?? | options?.locale?.options?.firstWeekContainsDate ?? | defaultOptions.firstWeekContainsDate ?? friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 212:0-34 212:0-34 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatRelative.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (52:25) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | | const defaultOptions = getDefaultOptions(); > const locale = options?.locale ?? defaultOptions.locale ?? defaultLocale; | const weekStartsOn = | options?.weekStartsOn ?? friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 76:0-37 76:0-37 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatISO.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (52:25) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | } | > const format = options?.format ?? "extended"; | const representation = options?.representation ?? "complete"; | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 71:0-32 71:0-32 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/differenceInWeeks.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (52:35) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | export function differenceInWeeks(dateLeft, dateRight, options) { | const diff = differenceInDays(dateLeft, dateRight) / 7; > return getRoundingMethod(options?.roundingMethod)(diff); | } | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 39:0-40 39:0-40 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatISO9075.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (53:25) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | } | > const format = options?.format ?? "extended"; | const representation = options?.representation ?? "complete"; | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 72:0-36 72:0-36 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/eachWeekOfInterval.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (60:21) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | let currentDate = startDateWeek; | > let step = options?.step ?? 1; | if (!step) return []; | if (step < 0) { friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 46:0-41 46:0-41 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/areIntervalsOverlapping.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (71:14) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | ].sort((a, b) => a - b); | > if (options?.inclusive) | return leftStartTime <= rightEndTime && rightStartTime <= leftEndTime; | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 14:0-46 14:0-46 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatDuration.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (80:25) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | export function formatDuration(duration, options) { | const defaultOptions = getDefaultOptions(); > const locale = options?.locale ?? defaultOptions.locale ?? defaultLocale; | const format = options?.format ?? defaultFormat; | const zero = options?.zero ?? false; friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 70:0-37 70:0-37 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js friendly-errors 12:31:13 AM ERROR in ./node_modules/date-fns/formatDistance.mjs friendly-errors 12:31:13 AM Module parse failed: Unexpected token (97:25) friendly-errors 12:31:13 AM You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders | export function formatDistance(date, baseDate, options) { | const defaultOptions = getDefaultOptions(); > const locale = options?.locale ?? defaultOptions.locale ?? defaultLocale; | const minutesInAlmostTwoDays = 2520; | friendly-errors 12:31:13 AM @ ./node_modules/date-fns/index.mjs 66:0-37 66:0-37 @ ./store/test.js @ ./.nuxt/store.js @ ./.nuxt/index.js @ ./.nuxt/client.js @ multi ./node_modules/eventsource-polyfill/dist/browserify-eventsource.js (webpack)-hot-middleware/client.js?reload=true&timeout=30000&ansiColors=&overlayStyles=&path=%2F__webpack_hmr%2Fclient&name=client ./.nuxt/client.js |
Nuxt.jsのバージョンは2.18.1で、date-fnsのバージョンは4.1.0です。
npm run dev時にnode_modulesのdate-fnsで「Module parse failed: Unexpected token」
私の場合はdate-fnsのライブラリのバージョンをダウングレードするとエラーが出なくなりました。
具体的には、date-fnsのバージョンを4.1.0から2.18.1にダウングレードさせるとエラーが消えました。
おそらくwebpackのバージョンとdate-fnsのバージョンが合っていないのかもしれません。
同じようなエラーが起きた方は上記を確認してみてください。
終わりに
今回はNuxt.js+date-fnsを使っていて、冒頭のエラーが起きたときの対処法についてご紹介いたしました。