离子3 cli'离子cordova运行android'命令抛出错误

Question

我将cli更新为离子3版本，当我运行时

离子cordova运行android

构建apk文件并在android模拟器中运行我收到此错误

    C:\Users\XXXX\Desktop\beep>ionic cordova run android
Running app-scripts build: --address 0.0.0.0 --port 8100 --p 8100 --livereload-port 35729 --r 35729 --iscordovaserve --externalIpRequired --nobrowser

[20:52:20]  build dev started ...
[20:52:20]  clean started ...
[20:52:20]  clean finished in 11 ms
[20:52:20]  copy started ...
[20:52:20]  transpile started ...
[20:52:22]  transpile finished in 2.53 s
[20:52:22]  preprocess started ...
[20:52:22]  deeplinks started ...
[20:52:23]  deeplinks finished in 52 ms
[20:52:23]  preprocess finished in 54 ms
[20:52:23]  webpack started ...
[20:52:23]  copy finished in 2.77 s
[20:52:31]  webpack finished in 8.53 s
[20:52:31]  sass started ...
[20:52:32]  sass finished in 1.11 s
[20:52:32]  postprocess started ...
[20:52:32]  postprocess finished in 7 ms
[20:52:32]  lint started ...
[20:52:32]  build dev finished in 12.29 s
> cordova run android
ANDROID_HOME=C:\Users\XXXX\AppData\Local\Android\sdk
JAVA_HOME=C:\Program Files\java\jdk1.8.0_101
Error: Could not find an installed version of Gradle either in Android Studio,
or on your system to install the gradle wrapper. Please include gradle
in your path, or install Android Studio


[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 (exit code 1).

我已经尝试过做什么并没有帮助：1。删除android studio并重新安装。 2.运行这些命令

cordova platform rm android
cordova platform add android
npm cache clear

3. 更新android studio中的sdk

什么都没有帮助解决这个问题。

Answer 1

对我来说，这解决了这个问题：

ionic cordova platform rm android 
ionic cordova platform add android 

Answer 2

将Android Studio的Gradle的位置（例如/usr/local/android-studio/gradle/gradle-3.2/bin ）添加到PATH环境变量中

Answer 3

这就是我解决这个问题的方法。

1. 下载gradle最新版本bin文件此链接链接下载gradle

2. 将winzip文件解压缩到java文件夹中（例如C：\\ Program Files \\ Java \\ jdk1.8.0_101 \\ gradle-3.5）

3. 转到我的电脑右键单击 - >属性。
4. 然后转到左侧菜单中的高级系统设置。
5. advance - > environment Variables然后选择Path。
6. 添加名为％GRADLE_HOME％/ bin的新环境变量

Answer 4

我也面临同样的问题，现在解决了以下步骤的问题

1. 下载gradle zip版本并解压缩到路径user\\<username>\\android-sdk\\gradle

2. 在环境变量中配置的相同路径，如GRADLE_HOME和path

Answer 5

我遇到同样的问题请运行以下命令它应该工作正常。

离子cordova运行android --livereload