IONIC 3 [ERROR] 运行cordova run android 时出错（退出代码1）

Question

我开始使用 ionic 3，但我尝试运行命令“ionic cordova run android”，我尝试了任何方法来解决这个问题，但我找不到这个问题的答案，我得到了这样的错误：

this result error
[13:29:45]  preprocess started ...
[13:29:45]  deeplinks started ...
[13:29:45]  deeplinks finished in 44 ms
[13:29:45]  preprocess finished in 52 ms
[13:29:45]  webpack started ...
[13:29:45]  copy finished in 14.20 s
[13:30:30]  webpack finished in 45.55 s
[13:30:30]  sass started ...
[13:30:36]  sass finished in 5.48 s
[13:30:36]  postprocess started ...
[13:30:36]  postprocess finished in 22 ms
[13:30:36]  lint started ...
[13:30:36]  build dev finished in 64.67 s
[13:30:36]  watch ready in 65.09 s
[13:30:36]  dev server running: http://localhost:8100/

> cordova run android
[13:30:46]  lint finished in 10.69 s
ANDROID_HOME=C:\Program Files (x86)\Android\android-sdk
JAVA_HOME=C:\Program Files\Java\jdk1.8.0_112
Error: Cannot read property 'length' of undefined


[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).

这是我的离子信息：

全局包：

@ionic/cli-plugin-proxy : 1.3.0
@ionic/cli-utils        : 1.3.0
Cordova CLI             : 7.0.1
Ionic CLI               : 3.3.0

本地包：

@ionic/app-scripts              : 1.3.7
@ionic/cli-plugin-cordova       : 1.3.0
@ionic/cli-plugin-ionic-angular : 1.3.0
Cordova Platforms               : android 6.2.3
Ionic Framework                 : ionic-angular 3.3.0

系统：

Node       : v6.11.0
OS         : Windows 7
Xcode      : not installed
ios-deploy : not installed
ios-sim    : not installed

Answer 1

我也遇到了同样的问题，[错误] 运行cordova run android 时发生错误（退出代码1）。

在 CLI 中使用以下命令：

ionic cordova platform rm android
ionic cordova platform add android
npm cache clear
ionic cordova run android 

还可以在 android studio 中更新或创建新的 AVD。