错误:
Error:Conflict with dependency 'com.google.code.findbugs:jsr305' in project ':onedemo'. Resolved versions for app (3.0.1) and test app (2.0.1) differ. See http://g.co/androidstudio/app-test-app-conflict for details.
解决办法:在build.gradle文件下的androidTestCompile中 添加:
exclude group: 'com.google.code.findbugs', module: 'jsr305'