错误信息如下：
Error:Could not find any version that matches com.android.support:appcompat-v7:22+. Searched in the following locations: https://jcenter.bintray.com/com/android/support/appcompat-v7/maven-metadata.xml https://jcenter.bintray.com/com/android/support/appcompat-v7/ Required by: MyAsApplication:app:unspecified Please install the Android Support Repository from the Android SDK Manager.
build.gradle配置如下：
compile 'com.android.support:appcompat-v7:22+'
参照这个方法也没有解决：
http://stackoverflow.com/questions/19621941/android-studio-could-not-find-any-version-that-matches-com-android-supportappco