这两天尝试了下Github上的集成服务Travis CI，然后出现了很多错误，现将处理方式记录，方便以后查阅：
-
./gradlew: Permission denied
解决方式：
一. 在git界面输入如下命令git update-index --chmod=+x gradlew
之后再输入
git ls-tree HEAD
查看打印结果
100644 blob xxxxxxxxxxx gradlew
然后继续输入
git commit -m "permission access for travis"
在查看git ls-tree HEAD命令查看，会发现权限已经改变
100755 blob xxxxxxxxxxxxx gradlew
二. 或者你可以直接在.travis.yml 中添加如下命令：
>before_install:
- chmod +x gradlew
did not find expected '-' indicator while parsing a block collection at line 5 column 5
/home/travis/build.sh: line 57: eval: -": invalid option
这两个问题的出现，我这边是因为在.travis.yml文件中存在#标记的注释，或者命令起始的-后面的缺少空格java.lang.UnsupportedClassVersionError: com/android/build/gradle/AppPlugin : Unsupported major.minor version 52.0
这个的解决方案是在.travis.yml文件内增加：
jdk: oraclejdk8
即可解决问题
- You have not accepted the license agreements of the following SDK components
同样在.travis.yml 文件中增加
android:
components:
- tools
- platform-tools
licenses:
- 'android-sdk-preview-license-.+'
- 'android-sdk-license-.+'
- 'google-gdk-license-.+'
解决方案实际链接：
Permission denied 1
Permission denied 2
Unsupported major.minor version 52.0
You have not accepted the license agreements of the following SDK components
You have not accepted the license agreements of the following SDK components
