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Android无法实例化活动:未在路径上找到类

我已将项目导入eclipse,当我尝试运行它时,抛出此异常:

java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.polygraf/com.polygraf.activity.Dashboard}: java.lang.ClassNotFoundException: Didn't find class "com.polygraf.activity.Dashboard" on path: /data/app/com.polygraf-1.apk

我试图清理项目,然后检查所有类名和清单是否正常,但仍然无法找到原因.你能帮我一点吗?

达斯巴德班:

public class Dashboard extends FragmentActivity {

private static final String WELCOME_TYPE = "WELCOME_TYPE";
private static final String HELP_TYPE = "HELP_TYPE";

public static final String ADRESS_CONTENT = "ADRESS_CONTENT";
public static final String DOC_NAME = "DOC_NAME";

private Transcript mContent;
private ISettableContent mListOfDocument;

private String mAddress;

private String mDocName;

public Dashboard() {
}

/** Called with the activity is first created. */
@Override
public void onCreate(Bundle …
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java eclipse android class android-activity

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