Java 关于android studio活动的错误？

在android 1.5仿真器中启动应用程序时，我试图运行一个示例代码，但出现了以下错误。。。。有人有什么提示吗。。？ 来自LogCat的错误：

12-03 08:17:41.221 2141-2141/com.example.umairkhan.test1 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.umairkhan.test1, PID: 2141
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.umairkhan.test1/com.example.umairkhan.test1.MainActivity}: java.lang.SecurityException: Permission Denial: opening provider com.android.providers.contacts.ContactsProvider2 from ProcessRecord{b3e8b0d 2141:com.example.umairkhan.test1/u0a57} (pid=2141, uid=10057) requires android.permission.READ_CONTACTS or android.permission.WRITE_CONTACTS
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.SecurityException: Permission Denial: opening provider com.android.providers.contacts.ContactsProvider2 from ProcessRecord{b3e8b0d 2141:com.example.umairkhan.test1/u0a57} (pid=2141, uid=10057) requires android.permission.READ_CONTACTS or android.permission.WRITE_CONTACTS
at android.os.Parcel.readException(Parcel.java:1599)
at android.os.Parcel.readException(Parcel.java:1552)
at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:3550)
at android.app.ActivityThread.acquireProvider(ActivityThread.java:4778)
at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:2018)
at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1468)
at android.content.ContentResolver.query(ContentResolver.java:475)
at android.content.ContentResolver.query(ContentResolver.java:434)
at com.example.umairkhan.test1.MainActivity.fetchContacts(MainActivity.java:38)
at com.example.umairkhan.test1.MainActivity.onCreate(MainActivity.java:20)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.-wrap11(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

如错误所示

需要android.permission.READ_联系人或 android.permission.WRITE_联系人

您必须在清单文件中添加权限

<uses-permission android:name="android.permission.READ_CONTACTS" />

<uses-permission android:name="android.permission.WRITE_CONTACTS" />

有关android权限的更多信息，请访问

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希望能有所帮助。

关键行似乎是：由以下原因引起：java.lang.SecurityException:权限拒绝：从ProcessRecord{b3e8b0d 2141:com.example.umairkan.test1/u0a57}（pid=2141，uid=10057）打开提供者com.android.providers.contacts.ContactsProvider2需要android.permission.READ_联系人或android.permission.WRITE_CONTACTS@umairkhan在你把这两个许可证放进去之后，logcat是什么。这次是相同还是不同的错误？你能检查一下吗？不能把它放在评论里，因为它太长了。不要把它放在评论里，只要检查一下就行了：）是的，你有权把所有合适的权限放在清单文件里，否则它就不起作用了。