Ionic App Version - ionic-framework

Question

I can't install ionic native App Version.
When I write "ionic cordova plugin add cordova-plugin-app-version" shows next message:
How can I fix it??
λ ionic cordova plugin add cordova-plugin-app-version
> cordova plugin add cordova-plugin-app-version --save
× Running command - failed!
[ERROR] An error occurred while running cordova plugin add cordova-plugin-app-version --save (exit code 1):
Error: Failed to fetch plugin cordova-plugin-app-version via registry.
Probably this is either a connection problem, or plugin spec is incorrect.
Check your connection and plugin name/version/URL.
Error: cmd: Command failed with exit code 4294963229 Error output:
npm ERR! path C:\Users\Xu\Documents\github\rheumaiq_app\node_modules\es6-promise-plugin\package.json
npm ERR! code ELOOP
npm ERR! errno -4067
npm ERR! syscall open
npm ERR! ELOOP: too many symbolic links encountered, open
'C:\Users\Xu\Documents\github\rheumaiq_app\node_modules\es6-promise-plugin\package.json'
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Xu\AppData\Roaming\npm-cache\_logs\2017-10-18T14_44_39_797Z-debug.log
UPDATE:
Thanks a lot!!
But the problem is not App Version, is with es6-promise-plugin in node_modules.
package.json
...
"es6-promise-plugin": "file:node_modules/es6-promise-plugin",
...
this folder is empty, I dont know what I have to do.

Answer 1

You have a typo
Here is how it should be
cordova plugin add cordova-plugin-appversion
Your mistake most likely results from the github repo being
https://github.com/Rareloop/cordova-plugin-app-version
But npm version name differs from the git repo name.

Answer 2

You can try cordovas --nofetch option to work around problems like this since cordova 7.0.0:
cordova plugin add cordova-plugin-appversion --nofetch
See the release notes for cordova 7.0.0 here to read more about the --nofetch mode.

Answer 3

The problem is not that it is empty, the problem is that it is a symbolic link that points to itself and therefore does not work. A loop is created.
If you delete the folder node_modules/es6-promise-plugin you will see that it is created again each time you type npm install...
I have seen this efect occurs adding the android platform, when try to do it for the cordova-plugin-x-socialsharing plugin, with the 5.2.1 version.
With the v5.2.0 that does not happen.
You can change your version:
ionic cordova plugin remove cordova-plugin-x-socialsharing --force
ionic cordova plugin add cordova-plugin-x-socialsharing#5.2.0 --force
Or you can change in your package.json the version to use.