I have been facing this firebase emulator error when I try to start the emulator and it stops suddenly by providing this error continuously:
Failed to load function definition from source: Failed to generate manifest from function source: SyntaxError: Unexpected token '.'
I tried many different processes but couldn't find any possible solution to fix this. I updated the firebase-function version as many of them gave that solution but that's not working with me.
My firebase.json file:
{
"hosting": {
"predeploy": ["npm run --prefix client build"],
"public": "client/out",
"cleanUrls": true,
"ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
"rewrites": [
{
"source": "/app/**",
"function": "app"
},
{
"source": "/meeting/*",
"destination": "/meeting.html"
},
{
"source": "/meeting",
"destination": "/404.html"
}
]
},
"functions": {
"source": "functions"
},
"firestore": {
"indexes": "firestore.indexes.json"
},
"emulators": {
"functions": {
"port": 3002
},
"firestore": {
"port": 3001
},
"ui": {
"enabled": true
}
}
}I have been facing this firebase emulator error when I try to start the emulator and it stops suddenly by providing this error continuously:
Failed to load function definition from source: Failed to generate manifest from function source: SyntaxError: Unexpected token '.'
I tried many different processes but couldn't find any possible solution to fix this. I updated the firebase-function version as many of them gave that solution but that's not working with me.
My firebase.json file:
{
"hosting": {
"predeploy": ["npm run --prefix client build"],
"public": "client/out",
"cleanUrls": true,
"ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
"rewrites": [
{
"source": "/app/**",
"function": "app"
},
{
"source": "/meeting/*",
"destination": "/meeting.html"
},
{
"source": "/meeting",
"destination": "/404.html"
}
]
},
"functions": {
"source": "functions"
},
"firestore": {
"indexes": "firestore.indexes.json"
},
"emulators": {
"functions": {
"port": 3002
},
"firestore": {
"port": 3001
},
"ui": {
"enabled": true
}
}
}package.json file of functions:
{
"name": "@minimal/minimal-kit-react",
"author": "minimals",
"version": "2.7.0",
"private": true,
"scripts": {
"dev": "next dev -p 3222",
"build": "next build && next export",
"start": "next start",
"lint": "eslint --ext .js,.jsx ./src",
"lint:fix": "eslint --fix --ext .js,.jsx ./src"
},
"browserslist": {
"production": [
">0.5%",
"last 2 versions",
"Firefox ESR",
"not dead",
"not IE 11",
"maintained node versions"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"dependencies": {
"@babel/preset-react": "^7.16.7",
"@date-io/date-fns": "1.3.13",
"@emotion/cache": "^11.6.0",
"@emotion/react": "^11.7.0",
"@emotion/server": "^11.4.0",
"@emotion/styled": "^11.6.0",
"@fullcalendar/daygrid": "^5.10.1",
"@fullcalendar/interaction": "^5.10.1",
"@fullcalendar/list": "^5.10.1",
"@fullcalendar/react": "^5.10.1",
"@fullcalendar/timegrid": "^5.10.1",
"@fullcalendar/timeline": "^5.10.1",
"@iconify/react": "^3.1.0",
"@material-ui/pickers": "^3.3.10",
"@mui/icons-material": "^5.2.4",
"@mui/lab": "^5.0.0-alpha.59",
"@mui/material": "^5.2.2",
"@nandorojo/swr-firestore": "^0.16.0",
"@zeit/next-css": "^1.0.1",
"@zeit/next-sass": "^1.0.1",
"axios": "^0.24.0",
"change-case": "^4.1.2",
"country-flag-icons": "^1.5.3",
"date-fns": "^2.27.0",
"firebase": "^9.6.1",
"formik": "^2.2.9",
"framer-motion": "^4.1.17",
"jwt-check-expiration": "^1.0.5",
"material-ui-phone-number": "^3.0.0",
"moment": "^2.29.1",
"next": "^12.0.7",
"next-transpile-modules": "^9.0.0",
"node-sass": "^4.14.1",
"notistack": "^2.0.3",
"nprogress": "^0.2.0",
"otp-input-react": "^0.2.4",
"prevent-orientation": "^2.1.0",
"prop-types": "^15.7.2",
"react": "17.0.2",
"react-countdown": "^2.3.2",
"react-dom": "17.0.2",
"react-drag-drop-files": "^2.2.2",
"react-intersection-observer": "^8.32.5",
"react-lazy-load-image-ponent": "^1.5.1",
"react-number-format": "^4.9.1",
"react-otp-input": "^2.4.0",
"react-phone-input-mui": "^2.9.4",
"react-phone-number-input": "^3.1.44",
"react-quill": "^2.0.0-beta.4",
"react-screen-orientation": "^0.0.4",
"simplebar": "^5.3.6",
"simplebar-react": "^2.3.6",
"stylis": "^4.0.10",
"stylis-plugin-rtl": "^2.1.1",
"timezone-support": "^2.0.2",
"typescript": "^4.4.4",
"yup": "^0.32.11"
},
"devDependencies": {
"@next/eslint-plugin-next": "^12.0.7",
"eslint": "^8.4.0",
"eslint-config-next": "^12.0.7",
"eslint-config-prettier": "^8.3.0",
"prettier": "2.5.1"
}
}- 5 Please don't post your error messages, logs, tracebacks or code samples as images (screenshots) - they are not indexed and thus hard to search. – STerliakov Commented May 26, 2022 at 13:09
-
1
The message:
SyntaxError: Unexpected tokenis mainly related to typos and syntax errors. This question (3143698) can help you to troubleshoot those ones. I will leave some similar questions that have different scenarios on what could be causing this message: (68444314, 70254904,72225579, 70027316, 70068889). Please update your post with feedback if you have tried some mentioned answers, “tried catched” the message as shown here (43012610) and share more code like your javascript or typescript. – Alex Commented May 31, 2022 at 15:57 - Did you get any solution? – Voonic Commented Sep 18, 2022 at 17:42
3 Answers
Reset to default 5I got the same issue which I solved by reinstalling the firebase-tool package.
npm install -g firebase-tools
It may be caused because you have some empty function(function with no body) in your code, search and erase it, your issue will be solved
I got the same issue. I passed through my index.js. I realized I let a function with no body...
async function myfunctionName()
I erased it, and it worked much better !