问题解决
1.类似于这样的错
Error:Unable to resolve dependency for ':[email protected]/compileClasspath': Could not resolve com.android.support:appcompat-v7:26.1.0. Open FileShow DetailsError:Unable to resolve dependency for ':[email protected]/compileClasspath': Could not resolve com.android.support.test:runner:1.0.1. Open FileShow Details
直接在build.gradle里面加上这句话