My Android Studio in activity_main.xml showing this problem: \"Rendering Problems No render target selected\" Help?
Top menu bar on the left side of the AVD Manager button you have a "Sync Project with Gradle Files" button. Click that. Android Studio may become sluggish for like 5 seconds, but you'll also see a loading wheel in the project files tab, and possibly a yellow bar on the top of activity_main.xml tab saying that Gradle is syncing. In about 5 seconds everything will be up to date, and you will see the device as expected. Hope this helps.
Check the Android manifest file to see if you have specified this
<uses-sdk android:minSdkVersion="integer"
android:targetSdkVersion="integer"
android:maxSdkVersion="integer" />
If not then add this, it solved the error for me.
You need to run the AVD Manager to add a virtual device that matches the target API version your project is set to. Click Tools->Android->AVD Manager. Click on 'New', add virtual devices targeting higher API levels, e.g 18, 19, etc. Then restart Android Studio, and open your project, it should find a target device to allow you access to the Design view.
Check the package name is correctly set in applicationId
in file app\build.gradle
You just make sure your right top corner api selection is below api 18 or 18 I think it will work or you will goto graphics layout and see the top corner and change
I solved it with File
-> Invalidate Caches/Restart
.