When I click to run a project I just created in Android Studio 0.2.10 and select my Android (connected by USB with debug by USB on) I get this error:
Waiting
I got this issue on a project with Dagger and multiple modules. What worked for me (none of the above worked) was to 1) empty the .gradle folder 2) empty the .idea folder 3) In project gradle.properties, mark org.gradle.caching=false 4) Possibly invalidate caches in AS, clean, rebuild
You may be able to get away with just #3, clean then build.
EDIT: Lately I've been able to get around this by restarting AS, then doing a clean, then install again.