Can't run Android Test Recorder

Question

I use Espresso in my Project with success. But when I click on record, this append !

Answer 1

哟必须添加espresso作为依赖，就像它在链接文档中所说的那样。 如果你没有明确添加

androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.1'

到你的build.gradle依赖项，它不会工作。