Hi I am getting below error while generating build for iOS and android :

You have been opted out of telemetry. To change this, run: cordova telemetry on.
No scripts found for hook "before_plugin_add".
Calling plugman.fetch on plugin "https://github.com/OutSystemsExperts/File-Viewer-Plugin.git#0.0.1.os"
saving
Running command: npm install https://github.com/OutSystemsExperts/File-Viewer-Plugin.git#0.0.1.os --production --save
Command finished with error code 1: npm install,https://github.com/OutSystemsExperts/File-Viewer-Plugin.git#0.0.1.os,--production,--save
Error: Failed to fetch plugin https://github.com/OutSystemsExperts/File-Viewer-Plugin.git#0.0.1.os via registry.
Probably this is either a connection problem, or plugin spec is incorrect.
Check your connection and plugin name/version/URL.
Error: npm: Command failed with exit code 1 Error output:
npm ERR! code ENOPACKAGEJSON
npm ERR! package.json Non-registry package missing package.json: git+https://github.com/OutSystemsExperts/File-Viewer-Plugin.git#0.0.1.os.
npm ERR! package.json npm can't find a package.json file in your current directory.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2018-08-01T14_46_21_030Z-debug.log

[2018-08-01T14:46:21.111Z] [ERROR] Build failed with the following error: Error fetching Cordova plugin: https://github.com/OutSystemsExperts/File-Viewer-Plugin.git#0.0.1.os.
[2018-08-01T14:46:21.111Z] [INFO] Remove debug/release signing properties
[2018-08-01T14:46:21.112Z] [INFO] Zipping application source...
[2018-08-01T14:46:56.138Z] [INFO] Application was not successfully generated!
[2018-08-01T14:46:56.138Z] [INFO] Execution time: 255249ms

Can you please help me with this om how to resolve this ?

Regards,

Akshay Tank.