'App not Installed' Error on Android

Question

I have a program working in the Android Emulator. Every now and again I have been creating a signed .apk and exporting it to my HTC Desire to test. It has all been fine.

Answer 1

I had the same problem and here is how solved it : Go to the Manifest file and make sure you have the "Debuggable" and the "Test Only" attributes set to false. It worked for me :)