这里我的离子项目有fire-base配置，我也想在Android设备中测试该应用程序， 所以我使用命令：ionic cordova build Android --prod。 当我尝试生成Android版本时，它会通过以下错误编写：
[12:07:49] lint finished in 3.15 s
publishNonDefault is deprecated and has no effect anymore. All variants are now published.
+-----------------------------------------------------------------
| cordova-android-play-services-gradle-release: 15.+
+-----------------------------------------------------------------
Configuration 'compile' in project ':app' is deprecated. Use 'implementation' instead.
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_ans61jsqxp3a561faadhq188o.run(D:\ionicProjects\ionicFirebase\platforms\android\app\build.gradle:146)
FAILURE: Build failed with an exception.
* Where:
Script 'D:\ionicProjects\ionicFirebase\platforms\android\cordova-support-google-services\starter-build.gradle' line: 16
* What went wrong:
A problem occurred evaluating project ':app'.
> Failed to apply plugin [class 'com.google.gms.googleservices.GoogleServicesPlugin']
> For input string: "+"
* 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 0s
(node:8196) UnhandledPromiseRejectionWarning: Error: cmd: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.
* Where:
Script 'D:\ionicProjects\ionicFirebase\platforms\android\cordova-support-google-services\starter-build.gradle' line: 16
* What went wrong:
A problem occurred evaluating project ':app'.
> Failed to apply plugin [class 'com.google.gms.googleservices.GoogleServicesPlugin']
> For input string: "+"
* 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 0s
at ChildProcess.whenDone (D:\ionicProjects\ionicFirebase\platforms\android\cordova\node_modules\cordova-common\src\superspawn.js:169:23)
at ChildProcess.emit (events.js:160:13)
at maybeClose (internal/child_process.js:943:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:220:5)
(node:8196) 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:8196) [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.