I havehad the same problem, and it happens when I create a new project.
What I do is check for SDK updates and then android studio updates, then reopen the project, open the andoridmanifest.xml erase a space between a "_>" in the android:label and save. Well that
- check for SDK updates
- then android studio updates,
- then reopen the project
- open the andoridmanifest.xml
- erase a space between a "_>" in the android:label and save.
That works for me :) I hope it works for you.