会报一个这样的警告

(node:18528) UnhandledPromiseRejectionWarning: TypeError: Cannot mix BigInt and other types, use explicit conversions
    at FSWatcher._hasReadPermissions (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\index.js:775:36)
    at WatchHelper.filterPath (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\index.js:191:16)
    at ReaddirpStream.fileFilter [as _fileFilter] (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\lib\nodefs-handler.js:405:29)
    at ReaddirpStream._isFileAndMatchesFilter (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_readdirp@3.0.3@readdirp\index.js:234:31)
    at ReaddirpStream._exploreDirectory (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_readdirp@3.0.3@readdirp\index.js:163:23)
(node:18528) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a
catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:18528) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
(node:18528) UnhandledPromiseRejectionWarning: TypeError: Cannot mix BigInt and other types, use explicit conversions
    at FSWatcher._hasReadPermissions (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\index.js:775:36)
    at WatchHelper.filterPath (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\index.js:191:16)
    at ReaddirpStream.fileFilter [as _fileFilter] (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\lib\nodefs-handler.js:405:29)
    at ReaddirpStream._isFileAndMatchesFilter (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_readdirp@3.0.3@readdirp\index.js:234:31)
    at ReaddirpStream._exploreDirectory (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_readdirp@3.0.3@readdirp\index.js:163:23)
(node:18528) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a
catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:18528) UnhandledPromiseRejectionWarning: TypeError: Cannot mix BigInt and other types, use explicit conversions
    at FSWatcher._hasReadPermissions (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\index.js:775:36)
    at WatchHelper.filterPath (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\index.js:191:16)
    at ReaddirpStream.fileFilter [as _fileFilter] (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\lib\nodefs-handler.js:405:29)
    at ReaddirpStream._isFileAndMatchesFilter (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_readdirp@3.0.3@readdirp\index.js:234:31)
    at ReaddirpStream._exploreDirectory (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_readdirp@3.0.3@readdirp\index.js:163:23)
(node:18528) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a
catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 3)
(node:18528) UnhandledPromiseRejectionWarning: TypeError: Cannot mix BigInt and other types, use explicit conversions
    at FSWatcher._hasReadPermissions (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\index.js:775:36)
    at WatchHelper.filterPath (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\index.js:191:16)
    at ReaddirpStream.fileFilter [as _fileFilter] (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_chokidar@3.0.1@chokidar\lib\nodefs-handler.js:405:29)
    at ReaddirpStream._isFileAndMatchesFilter (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_readdirp@3.0.3@readdirp\index.js:234:31)
    at ReaddirpStream._exploreDirectory (C:\Users\Administrator\Desktop\WebProject\vue+koa2+node\koa2-ssr-vue\2\mt-app\node_modules\_readdirp@3.0.3@readdirp\index.js:163:23)
(node:18528) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a
catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 4)

同时页面会出现这个错误

GET http://localhost:3000/_nuxt/runtime.js net::ERR_ABORTED 404 (Not Found)
GET http://localhost:3000/_nuxt/runtime.js net::ERR_ABORTED 404 (Not Found)
GET http://localhost:3000/_nuxt/node_modules/_element-ui@2.10.1@element-ui/lib/theme-chalk/fonts/element-icons.woff net::ERR_ABORTED 404 (Not Found)
GET http://localhost:3000/_nuxt/node_modules/_element-ui@2.10.1@element-ui/lib/theme-chalk/fonts/element-icons.ttf net::ERR_ABORTED 404 (Not Found)