Ionic pro package build failed


#1

Getting error on package Android build.

Failed to restore plugin “cordova-plugin-ionic” from config.xml

Saved plugin info for "cordova-plugin-ionic" to config.xml
Failed to restore plugin "cordova-plugin-ionic" from config.xml. You might need to try adding it again. Error: TypeError: Invalid data, chunk must be a string or buffer, not object
(node:1) UnhandledPromiseRejectionWarning: TypeError: Invalid data, chunk must be a string or buffer, not object
    at Socket.write (net.js:714:11)
    at Socket.stream.write (/usr/local/lib/node_modules/cordova/node_modules/ansi/lib/newlines.js:36:21)
    at Object. (/usr/src/app/plugins/cordova-plugin-fcm/scripts/fcm_config_files_process.js:80:24)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
(node:1) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:1) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
cordova platform add android --no-fetch failed
Running after script...
$ run "clean-up"
Running Stage clean-up for Job: 5622469
ERROR: Job failed: exit status 1
 Build failedJob ID: 5622469
Android - debug build

Build failed!

Output of ionic info:

Please help in finding solution.
Thanks!