Android Studio menu in the app Run button has a fork number, reason and solution (go to Baidu yourself)

http://blog.csdn.net/sz0268/article/details/51706397

：

In Android Studio writing code, it is not generally possible to create a project directly, write code, and then run it, but once you change the main activity, Instead of manually changing the activity configuration in Androidmanifest.xml, this can happen, reminding us that there is no main activity. Manually add the child nodes of the main activity <intent-filter>, <action>, and <category>.

Error View:

Add code:

2. <activity android:name=". Dictresolvertest ">
4. <intent-filter>
6. <action android:name="Android.intent.action.MAIN" />
8. <category android:name="Android.intent.category.LAUNCHER" />
10. </intent-filter>
12. </Activity>

You can then see that the menu bar appears as normal:

Android Studio menu in the app Run button has a fork number, reason and solution (go to Baidu yourself)