相关疑难解决方法(0)

我在android中使用loginActivity.

错误

can not find symbol class Builder

我还导入了文件: com.google.android.gms.plus.PlusClient

这行出错了

mPlusClient = new PlusClient.Builder(this, this, this).setScopes(Scopes.PLUS_LOGIN, Scopes.PLUS_ME).build();

这是来自模板的自动生成的文件.这个错误的原因是什么？

编辑

我正在使用android studio

minSdkVersion 11

targetSdkVersion 21

我最近下载了Android Studio,我认为它有更多功能eclipse.

我创建了一个具有登录活动的新项目,但似乎活动出现错误:![在此处输入图像描述] [1]

**Error:(78, 31) error: cannot find symbol class Builder
Error:Execution failed for task ':app:compileDebugJava'.
> Compilation failed; see the compiler error output for details.**

import com.google.android.gms.plus.PlusClient;


    // This is the helper object that connects to Google Play Services.
    private PlusClient mPlusClient;


@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Initialize the PlusClient connection.
        // Scopes indicate the information about the user your application will be able to access.
        mPlusClient =
                new PlusClient.Builder(this, this, …