Travis构建错误

Question

我正在尝试将我的项目与travis集成

这是我的travis.yml

public class GLA14 {
public static void main(String[] args) {
    // TODO Auto-generated method stub
Solution sol = new Solution();

sol.show();

sol.associateListener(new MyActionListener());
}

我的项目结构是这样的：

language: android
android:
  components:
    # The BuildTools version used by your project
    - build-tools-22.0.1
    # The SDK version used to compile your project
    - android-22
    # - extra
    # - tools
    # - platform-tools

    # Specify at least one system image,
    # if you need to run emulator(s) during your tests
    - sys-img-armeabi-v7a-android-19
    - sys-img-x86-android-17

before_install: cd MyProject
install: ./gradlew clean build
script: ./gradlew check

notifications:
  email:
    - abc@gmail.com

现在我收到此错误

Git Repo-> 
- MyProject -> app, gradlew, and all android files are here
- .travis.yml