Ionic-3 (node:14304) [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

#1

When I run ionic cordova run android to build my apps. It shows build failed.

D:\Practice\azmaeen>ionic cordova run android
Running app-scripts build: --platform android --target cordova
[16:03:52]  build dev started ...
[16:03:52]  clean started ...
[16:03:52]  clean finished in 10 ms
[16:03:52]  copy started ...
[16:03:52]  deeplinks started ...
[16:03:52]  deeplinks finished in 179 ms
[16:03:52]  transpile started ...
[16:03:57]  transpile finished in 5.14 s
[16:03:57]  preprocess started ...
[16:03:57]  preprocess finished in less than 1 ms
[16:03:57]  webpack started ...
[16:03:58]  copy finished in 5.97 s
[16:04:05]  webpack finished in 7.36 s
[16:04:05]  sass started ...
Without `from` option PostCSS could generate wrong source map and will not find Browserslist config. Set it to CSS file path or to `undefined` to prevent this warning.
[16:04:11]  sass finished in 5.67 s
[16:04:11]  postprocess started ...
[16:04:11]  postprocess finished in 18 ms
[16:04:11]  lint started ...
[16:04:11]  build dev finished in 19.27 s
> cordova run android
Android Studio project detected

ANDROID_HOME=C:\Users\Aman\AppData\Local\Android\Sdk
JAVA_HOME=C:\Program Files\Java\jdk1.8.0_161
studio
[16:04:17]  lint finished in 6.28 s
Starting a Gradle Daemon, 2 incompatible and 1 stopped Daemons could not be reused, use --status for details

:wrapper


BUILD SUCCESSFUL in 39s
1 actionable task: 1 executed
Subproject Path: CordovaLib
Subproject Path: app
publishNonDefault is deprecated and has no effect anymore. All variants are now published.

Configuration 'compile' in project ':app' is deprecated. Use 'implementation' instead.

Download https://jcenter.bintray.com/com/google/gms/google-services/4.0.0/google-services-4.0.0.pom

Download https://jcenter.bintray.com/com/google/gms/google-services/4.0.0/google-services-4.0.0.jar

The Task.leftShift(Closure) method has been deprecated and is scheduled to be removed in Gradle 5.0. Please use Task.doLast(Action) instead.

        at build_7b1twz5vxmo7tfylofokr18ui.run(D:\Practice\azmaeen\platforms\android\app\build.gradle:146)
Could not find google-services.json while looking in [src/nullnull/debug, src/debug/nullnull, src/nullnull, src/debug, src/nullnullDebug]
registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection)

Could not find google-services.json while looking in [src/nullnull/release, src/release/nullnull, src/nullnull, src/release, src/nullnullRelease]
registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection)
:CordovaLib:preBuild
 UP-TO-DATE
:CordovaLib:preDebugBuild UP-TO-DATE
:CordovaLib:compileDebugAidl

:CordovaLib:compileDebugRenderscript

:CordovaLib:checkDebugManifest
:CordovaLib:generateDebugBuildConfig

:CordovaLib:prepareLintJar

:CordovaLib:generateDebugResValues
:CordovaLib:generateDebugResources
:CordovaLib:packageDebugResources

:CordovaLib:platformAttrExtractor

:CordovaLib:processDebugManifest

:CordovaLib:javaPreCompileDebug

:CordovaLib:processDebugJavaRes NO-SOURCE
:app:preBuild
 UP-TO-DATE
:app:preDebugBuild

:app:compileDebugAidl

:CordovaLib:packageDebugRenderscript NO-SOURCE
:app:compileDebugRenderscript

:app:checkDebugManifest
:app:generateDebugBuildConfig

:app:prepareLintJar

:app:generateDebugResValues

:app:generateDebugResources

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugGoogleServices'.
> File google-services.json is missing. The Google Services Plugin cannot function without it.
   Searched Location:
  D:\Practice\azmaeen\platforms\android\app\src\nullnull\debug\google-services.json
  D:\Practice\azmaeen\platforms\android\app\src\debug\nullnull\google-services.json
  D:\Practice\azmaeen\platforms\android\app\src\nullnull\google-services.json
  D:\Practice\azmaeen\platforms\android\app\src\debug\google-services.json
  D:\Practice\azmaeen\platforms\android\app\src\nullnullDebug\google-services.json
  D:\Practice\azmaeen\platforms\android\app\google-services.json

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 26s
:app:processDebugGoogleServices FAILED
18 actionable tasks: 18 executed
(node:14304) UnhandledPromiseRejectionWarning: Error: cmd: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugGoogleServices'.
> File google-services.json is missing. The Google Services Plugin cannot function without it.
   Searched Location:
  D:\Practice\azmaeen\platforms\android\app\src\nullnull\debug\google-services.json
  D:\Practice\azmaeen\platforms\android\app\src\debug\nullnull\google-services.json
  D:\Practice\azmaeen\platforms\android\app\src\nullnull\google-services.json
  D:\Practice\azmaeen\platforms\android\app\src\debug\google-services.json
  D:\Practice\azmaeen\platforms\android\app\src\nullnullDebug\google-services.json
  D:\Practice\azmaeen\platforms\android\app\google-services.json

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 26s
    at ChildProcess.whenDone (D:\Practice\azmaeen\platforms\android\cordova\node_modules\cordova-common\src\superspawn.js:169:23)
    at ChildProcess.emit (events.js:197:13)
    at maybeClose (internal/child_process.js:978:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:265:5)
(node:14304) 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:14304) [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.

[OK] Your app has been deployed.
     Did you know you can live-reload changes from your app with --livereload?

My Environment is:

D:\Practice\azmaeen>ionic info

cli packages: (C:\Users\Aman\AppData\Roaming\npm\node_modules)

    @ionic/cli-utils  : 1.19.2
    ionic (Ionic CLI) : 3.20.0

global packages:

    cordova (Cordova CLI) : 8.0.0

local packages:

    @ionic/app-scripts : 3.1.8
    Cordova Platforms  : android 7.0.0
    Ionic Framework    : ionic-angular 3.9.2

System:

    Node : v11.9.0
    npm  : 6.7.0
    OS   : Windows 10

Environment Variables:

    ANDROID_HOME : not set

Misc:

    backend : pro