Ranorex Forum

I am currently trying to make a test for an Android device. And I've reached the instrumentation step, I'm trying to instrument the app I'm testing on. And it completes all the way through until it gets to the Deployment step and then it passes this error:

"Installation of Android application failed - update error. Possible reason: The application is already installed with a different signature on the target device. To resolve this, remove the existing application from the device and retry instrumenting and deploying the application."

Although, this error doesn't seem right to me, I'm not sure what to remove and where it is. I don't know what the error is referring to.

Does anybody know what to do in this case I couldn't find anything about it online. Thank you.

Hi QATest879!

This is generally caused when the application is already installed on the target device. Removing the existing app from the device and then deploying it again is the most common fix for this issue. I hope this information helps!

--Jacob