Android test can't instrument the application on the device.

Mobile Testing, Android App Testing.
QATest879
Posts: 30
Joined: Fri Jul 02, 2021 2:35 pm

Android test can't instrument the application on the device.

Post by QATest879 » Tue Jul 27, 2021 12:36 pm

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.

Jacob
Certified Professional
Certified Professional
Posts: 120
Joined: Mon Mar 22, 2021 10:01 pm

Re: Android test can't instrument the application on the device.

Post by Jacob » Thu Jul 29, 2021 3:21 pm

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
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