我只是试着使用Android工作室。我创建空白项目，并试图建立活动延伸 AppCompatActivity 。 Unfortunalty机器人工作室说：它

无法解析符号AppCompatActivity

我有编译com.android.support:appcompat-v7:22.0 +在我的应用程序模块，并改造项目多次依赖列表。不过，我只能用 ActionBarActivity 。我究竟做错了什么？

不过我只能用ActionBarActivity。

正确的。对于 appcompat-V7 库，那就是当你想的添加一个操作栏。

我是什么做错了吗？

试图使用不存在的一类。 ： - ）

I've just tried to use Android Studio. I've created blank project and tried to create Activity which extends AppCompatActivity. Unfortunalty Android Studio "says" that it

Cannot resolve symbol 'AppCompatActivity'

I have compile "com.android.support:appcompat-v7:22.0.+" in dependency list of my "app" module and rebuilt project several times. However I can only use ActionBarActivity. What am I doing wrong?

However I can only use ActionBarActivity.

Correct. For the appcompat-v7 library, that is the base class to use for your activities when you want to add an action bar.

What am I doing wrong?

Trying to use a class that doesn't exist. :-)