INSTALL_FAILED_UID_CHANGED usually occurs due to improper installation/Uninstall . The only way to fix this problem on a non rooted phone is using the below technique [In some cases this might not work] 1. Try changing the package name of your GCM permission. Suppose you have a package name of -> com.androidcodelab.sampleproject then change that to com.androidcodelab.somename and run. What this does is, it completely searches…

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