I am developing a React app in VS Code. I used create-react-app for setup. I can run the project without any problem with npm start. When I tried to publish the project with Vercel I got errors:
Already tried deleting node_modules and npm install again.
Error! Command "npm run build" exited with 1
Error! Check your logs at https://...
You can see the logs below:
13:55:05.231 Retrieving list of deployment files...
13:55:06.975 Downloading 32 deployment files...
13:55:09.142 Analyzing source code...
13:55:11.289 Installing build runtime...
13:55:15.911 Build runtime installed: 4622.485ms
13:55:20.151 Looking up build cache...
13:55:21.237 Build cache not found
13:55:22.615 Detected package.json
13:55:22.616 Installing dependencies...
13:55:58.492 > core-js@2.6.12 postinstall /vercel/path0/node_modules/babel-runtime/node_modules/core-js
13:55:58.492 > node -e "try{require('./postinstall')}catch(e){}"
13:55:58.604 > core-js@3.9.1 postinstall /vercel/path0/node_modules/core-js
13:55:58.604 > node -e "try{require('./postinstall')}catch(e){}"
13:55:58.683 > core-js-pure@3.9.1 postinstall /vercel/path0/node_modules/core-js-pure
13:55:58.683 > node -e "try{require('./postinstall')}catch(e){}"
13:55:58.801 > ejs@2.7.4 postinstall /vercel/path0/node_modules/ejs
13:55:58.802 > node ./postinstall.js
13:56:01.182 npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/webpack-dev-server/node_modules/fsevents):
13:56:01.182 npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
13:56:01.191 npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.13 (node_modules/watchpack-chokidar2/node_modules/fsevents):
13:56:01.191 npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
13:56:01.202 npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.3.2 (node_modules/fsevents):
13:56:01.202 npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
13:56:01.210 added 1985 packages from 812 contributors in 37.99s
13:56:02.556 137 packages are looking for funding
13:56:02.556 run `npm fund` for details
13:56:02.831 Running "npm run build"
13:56:03.100 > last-letter-game@0.1.0 build /vercel/path0
13:56:03.100 > react-scripts build
13:56:04.846 Creating an optimized production build...
13:56:23.548 Treating warnings as errors because process.env.CI = true.
13:56:23.548 Most CI servers set it automatically.
13:56:23.548 Failed to compile.
13:56:23.549 src/components/Counter.js
13:56:23.549 Line 21:6: React Hook useEffect has a missing dependency: 'props.timeEnds'. Either include it or remove the dependency array react-hooks/exhaustive-deps
13:56:23.577 npm ERR! code ELIFECYCLE
13:56:23.578 npm ERR! errno 1
13:56:23.581 npm ERR! last-letter-game@0.1.0 build: `react-scripts build`
13:56:23.581 npm ERR! Exit status 1
13:56:23.583 npm ERR!
13:56:23.583 npm ERR! Failed at the last-letter-game@0.1.0 build script.
13:56:23.583 npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
13:56:23.592 npm ERR! A complete log of this run can be found in:
13:56:23.592 npm ERR! /vercel/.npm/_logs/2021-03-28T10_56_23_582Z-debug.log
13:56:23.606 Error: Command "npm run build" exited with 1
Check whether your codes don't have any warnings. If they have warnings try to fix them and deploy again or ignore them by setting the CI environment variable to false. It would look like this:
CI = false