SDK-manager似乎做了检测OK：
Build tools 19.1.0 missing. Downloading...
Support library repository outdated. Downloading update...
Google Play Services repository outdated. Downloading update...
但最终依赖项仍然缺失：
A problem occurred configuring root project 'PassAndroid'.
> Could not resolve all dependencies for configuration
':_withMapsNoAnalyticsForPlayDebugCompile'.
> Could not resolve com.android.support:support-v4:20.0.+.
Required by:
:PassAndroid:unspecified
> Failed to list versions for com.android.support:support-v4.
> Could not list versions using M2 pattern 'https://raw.github.com/ligi/ligis-mvn-repo/master/[organisation]/[module]/[revision]/[artifact]-[revision](-[classifier]).[ext]'.
> Could not GET 'https://raw.github.com/ligi/ligis-mvn-repo/master/com/android/support/support-v4/'. Received status code 400 from server: Bad Request
> Could not resolve com.android.support:appcompat-v7:20.0.+.
Required by:
:PassAndroid:unspecified
> Failed to list versions for com.android.support:appcompat-v7.
> Could not list versions using M2 pattern 'https://raw.github.com/ligi/ligis-mvn-repo/master/[organisation]/[module]/[revision]/[artifact]-[revision](-[classifier]).[ext]'.
> Could not GET 'https://raw.github.com/ligi/ligis-mvn-repo/master/com/android/support/appcompat-v7/'. Received status code 400 from server: Bad Request
> Could not find com.google.android.gms:play-services:5.0.77.
Required by:
:PassAndroid:unspecified