In your AndroidManifest.xml, you only need to add the following in the tag.

The stays as is.

Easy, right?

Well, a warning is a warning and this is a harmless one. I for one do not like seeing warning icons beside my XML files in Eclipse. I find them annoying.

To clear this warning message, go to Windows > Preferences > XML > XML Files > Validation.

There is an entry there under the group Validating files called No grammar specified. Change the dropdown value from Warning to Ignore.

Voila! No more warning message!

If you encounter this error message “Application is not installed on your phone” when you deploy your Android app, the culprit is within your manifest file.

This can happen if you have your activity declared twice in your AndroidManifest.xml file. And by twice, I mean one: as a normal activity and two: as the launcher.

Make sure every activity in the manifest file is declared only once.

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