所以我尝试在我的（工作）Ionic应用程序中安装一个新的插件，这将是https://ionicframework.com/docs/native/firebase-dynamic-links/
我有一个奇怪的错误，所以我尝试了一些东西，最终回到了我使用git reset来彻底撤消所做的事情。
......但错误不会消失。
我尝试升级Cordova和Ionic，再次删除node_modules和npm install，删除并添加回Android平台......没有任何帮助。
cordova build android
cordova-android-firebase-gradle-release: Android platform: V7+
cordova-android-firebase-gradle-release: No custom version found in config.xml - using plugin default
cordova-android-support-gradle-release: Android platform: V7+
cordova-android-support-gradle-release: Wrote custom version '27.+' to C:\Users\JB\Dropbox\dev\azkara\platforms\android\app\build.gradle
cordova-android-support-gradle-release: Wrote custom version '27.+' to C:\Users\JB\Dropbox\dev\azkara\platforms\android\cordova-android-support-gradle-release\azkara-cordova-android-support-gradle-release.gradle
Android Studio project detected
config file res/values/facebookconnect.xml requested for changes not found at C:\Users\JB\Dropbox\dev\azkara\platforms\android\res\values\facebookconnect.xml, ignoring
config file res/values/facebookconnect.xml requested for changes not found at C:\Users\JB\Dropbox\dev\azkara\platforms\android\res\values\facebookconnect.xml, ignoring
config file res/values/facebookconnect.xml requested for changes not found at C:\Users\JB\Dropbox\dev\azkara\platforms\android\res\values\facebookconnect.xml, ignoring
cordova-android-firebase-gradle-release: Android platform: V7+
cordova-android-firebase-gradle-release: No custom version found in config.xml - using plugin default
cordova-android-support-gradle-release: Android platform: V7+
cordova-android-support-gradle-release: Wrote custom version '27.+' to C:\Users\JB\Dropbox\dev\azkara\platforms\android\app\build.gradle
cordova-android-support-gradle-release: Wrote custom version '27.+' to C:\Users\JB\Dropbox\dev\azkara\platforms\android\cordova-android-support-gradle-release\azkara-cordova-android-support-gradle-release.gradle
Preparing Firebase on Android
ANDROID_HOME=C:\Users\JB\AppData\Local\Android\sdk
JAVA_HOME=C:\Program Files\Java\jdk1.8.0_171
studio
:wrapper
BUILD SUCCESSFUL in 0s
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.
+-----------------------------------------------------------------
| cordova-android-firebase-gradle-release: 15.+
+-----------------------------------------------------------------
+-----------------------------------------------------------------
| cordova-android-support-gradle-release: 27.+
+-----------------------------------------------------------------
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_889mq4973ul5dy09k37yyn7v6.run(C:\Users\JB\Dropbox\dev\azkara\platforms\android\app\build.gradle:155)
FAILURE: Build failed with an exception.
* Where:
Script 'C:\Users\JB\Dropbox\dev\azkara\platforms\android\cordova-support-google-services\azkara-build.gradle' line: 16
* What went wrong:
A problem occurred evaluating project ':app'.
> Failed to apply plugin [class 'com.google.gms.googleservices.GoogleServicesPlugin']
> Cannot add extension with name 'googleServices', as there is an extension already registered with that name.
* 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 1s
cmd: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.
* Where:
Script 'C:\Users\JB\Dropbox\dev\azkara\platforms\android\cordova-support-google-services\azkara-build.gradle' line: 16
* What went wrong:
A problem occurred evaluating project ':app'.
> Failed to apply plugin [class 'com.google.gms.googleservices.GoogleServicesPlugin']
> Cannot add extension with name 'googleServices', as there is an extension already registered with that name.
* 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 1s
[ERROR] An error occurred while running subprocess cordova.
我真的需要帮助了解到底发生了什么，以及我如何克服它。
好的，终于搞定了。删除了plugins文件夹，走了我的插件列表以删除不必要的东西，删除了node_modules文件夹，删除了Android平台，升级了所有内容，重新安装了所有内容（如果你愿意，你可以使用ionic cordova prepare插件，或者如果你删除Android平台，添加它将取回插件无论如何）。建立。