Npm ERR! Invalid version on npm install

user_12363349 0
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Whenever I run npm install I get

npm ERR! Invalid Version:

This is the log file.

43 verbose stack TypeError: Invalid Version: 
43 verbose stack     at new SemVer (C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\semver\classes\semver.js:38:13)
43 verbose stack     at compare (C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\semver\functions\compare.js:3:32)
43 verbose stack     at Object.gte (C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\semver\functions\gte.js:2:30)
43 verbose stack     at Node.canDedupe (C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\@npmcli\arborist\lib\node.js:1054:32)
43 verbose stack     at PlaceDep.pruneDedupable (C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\@npmcli\arborist\lib\place-dep.js:465:14)
43 verbose stack     at PlaceDep.placeInTree (C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\@npmcli\arborist\lib\place-dep.js:326:14)
43 verbose stack     at PlaceDep.place (C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\@npmcli\arborist\lib\place-dep.js:214:10)
43 verbose stack     at new PlaceDep (C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\@npmcli\arborist\lib\place-dep.js:71:10)
43 verbose stack     at C:\Users\Myself\AppData\Roaming\npm\node_modules\npm\node_modules\@npmcli\arborist\lib\arborist\build-ideal-tree.js:965:31
43 verbose stack     at Array.map (<anonymous>)
44 verbose cwd C:\Users\Dont\Want\To\Reveal\This\Information
45 verbose Windows_NT 10.0.19042
46 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Myself\\AppData\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js" "i" "-force"
47 verbose node v16.14.0
48 verbose npm  v8.5.1
49 error Invalid Version: 
50 verbose exit 1
51 timing npm Completed in 18500ms

I don't understand what version of what is invalid? Help!

npm version
5 Answers

Deletingnode_modules and package-lock.json (OR yarn.lock) solved the issue for me.

user_83695650

I had the same error with npm@8.12. Fixed by downgrading to npm@8.5.

user_17879730

Solution : if you check your "package.json" file in your projects root, it's probably missing one or all of the following properties:

  1. name
  2. version

for version, it has to be in the form "x.x.x", i.e in my(and probably yours) case "1.0.0"

for name you can obtain it from the "app.json" for example in my case:

{                                                                                                                                                                   
     "expo": {
       "name": "the-10-min",
       "slug": "the-10-min",
       "privacy": "public",
       "platforms": [
         "ios",
         "android",
         "web"
      ],

so in my case the name property in the "package.json" file will be "the-10-min" .Plug in the values for name and version then run the command "npm install"

user_178378630

Try this

  • Delete the folder npm_modules
  • Delete the file package.json.lock
  • npm cache clean --force

And try installing again

user_144870320

You should also ensure that the name properties in app.json and package.json are the same- they were different in mine and caused the error

user_139194720
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