adb uninstall failed

Question

I am writing some sample apps.
After I debug these apps, I don\'t see an uninstall button in my device\'s application management.
When I do adb uninstall, it always

Answer 1

Seems like you have an app that contains a hidden Device Administrator like this one here: http://www.symantec.com/security_response/writeup.jsp?docid=2013-060411-4146-99

you can only uninstall such an app when you disable the device admin first. You can use https://play.google.com/store/apps/details?id=com.trendmicro.mtrt.hiddenDAcleaner to disable it or do it by your own by sending the intent to the app that invokes the receiver that will disable the device admin.