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獲得的NullPointerException：的NullPointerException而離子科爾多瓦執行離子科爾多瓦運行機器人時運行Android
E:\Workspace\Angular\myTabs>ionic cordova run android --device
Running app-scripts build: --address 0.0.0.0 --port 8100 --p 8100 --livereload-port 35729 --r 35729 --iscordovaserve
--externalIpRequired --nobrowser
[13:31:48] build dev started ...
[13:31:49] clean started ...
[13:31:49] clean finished in 18 ms
[13:31:49] copy started ...
[13:31:49] transpile started ...
[13:32:04] transpile finished in 14.96 s
[13:32:04] preprocess started ...
[13:32:04] deeplinks started ...
[13:32:04] deeplinks finished in 61 ms
[13:32:04] preprocess finished in 66 ms
[13:32:04] webpack started ...
[13:32:05] copy finished in 16.44 s
[13:32:45] webpack finished in 41.65 s
[13:32:45] sass started ...
[13:32:50] sass finished in 4.80 s
[13:32:50] postprocess started ...
[13:32:50] postprocess finished in 17 ms
[13:32:50] lint started ...
[13:32:50] build dev finished in 61.72 s
> cordova run android --device
ANDROID_HOME=C:\Users\ghanendra\AppData\Local\Android\sdk
JAVA_HOME=C:\Program Files\Java\jdk1.8.0_51
Subproject Path: CordovaLib
[13:33:03] lint finished in 12.38 s
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_1n7tz8l3280mv8kwgyclznwu1.run(E:\Workspace\Angular\myTabs\platforms\android\build.gradle:137)
Checking the license for package Android SDK Build-Tools 26 in C:\Users\ghanendra\AppData\Local\Android\sdk\licenses
License for package Android SDK Build-Tools 26 accepted.
Preparing "Install Android SDK Build-Tools 26".
BUILD FAILED
Total time: 8.785 secs
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'android'.
> java.lang.NullPointerException (no error message)
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Error: cmd: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'android'.
> java.lang.NullPointerException (no error message)
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
[ERROR] Cordova encountered an error.
You may get more insight by running the Cordova command above directly.
[ERROR] An error occurred while running cordova run android --device (exit code 1).
我一直在尋找一種解決方案，手動試圖通過運行gradle wrapper命令添加的gradle到以下路徑：
C:\Users\g\AppData\Local\Android\sdk\tools\gradle
也試過了這個指令link
使用sdk manager i更新了所有的sdk工具在Android工作室之前。
我已經安裝了android studio（也能夠使用它創建andriod原生應用程序）以及sdk工具的路徑和系統環境變量中配置的ANDRIOD_HOME。