Firebase - Failing to install firebase using npm but yarn works

问题

λ npm -g install firebase
npm ERR! Unexpected end of JSON input while parsing near '...9gwBD9c+ThTWWmNBXcfJZ'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\2nchy\AppData\Roaming\npm-cache\_logs\2020-07-13T18_19_46_173Z-debug.log

I increased timeout seconds in .npmrc to 12,000 and downgraded npm to 6.3.17, cleared the cache as it was suggested and even installed it from an empty directory but still getting an almost same error

UPDATE Uninstalled nodejs and resinstalled. This is the log:

0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   '-g',
1 verbose cli   'install',
1 verbose cli   'firebase'
1 verbose cli ]
2 info using npm@6.14.4
3 info using node@v12.16.3
4 verbose npm-session 73d31a98f2671f49
5 silly install loadCurrentTree
6 silly install readGlobalPackageData
7 http fetch GET 200 https://registry.npmjs.org/firebase 5152ms
8 silly fetchPackageMetaData error for firebase@latest Unexpected end of JSON input while parsing near '....0"},"dist":{"shasum"'
9 timing stage:rollbackFailedOptional Completed in 1ms
10 timing stage:runTopLevelLifecycles Completed in 5197ms
11 verbose stack SyntaxError: Unexpected end of JSON input while parsing near '....0"},"dist":{"shasum"'
11 verbose stack     at JSON.parse (<anonymous>)
11 verbose stack     at parseJson (C:\Program Files\nodejs\node_modules\npm\node_modules\json-parse-better-errors\index.js:7:17)
11 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\node-fetch-npm\src\body.js:96:50
11 verbose stack     at processTicksAndRejections (internal/process/task_queues.js:97:5)
12 verbose cwd C:\Users\2nchy\Desktop\firetrial
13 verbose Windows_NT 10.0.17763
14 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "-g" "install" "firebase"
15 verbose node v12.16.3
16 verbose npm  v6.14.4
17 error Unexpected end of JSON input while parsing near '....0"},"dist":{"shasum"'
18 verbose exit [ 1, true ]

回答1:

SOLVED
I just had to upgrade npm to the latest version instead of downgrading it.

• npm install -g npm@latest
• and because of a slow internet connection, i kept timeout=12000 in .npmrc
• This issue might help: https://github.com/npm/cli/issues/1185#issuecomment-641990197

来源：https://stackoverflow.com/questions/62882224/firebase-failing-to-install-firebase-using-npm-but-yarn-works