INSTALL_FAILED_UPDATE_INCOMPATIBLE when I try to i

Question

I've compiled Trebuchet launcher from CyanogenMod 9, and trying to install it with adb:

$ adb install out/target/product/generic/system/app/Trebuchet.apk
3986 KB/s (7870141 bytes in 1.928s)
    pkg: /data/local/tmp/Trebuchet.apk
Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE]

I tried on Nexus S with CM9 and Galaxy Nexus with stock JB. Why I'm getting this error?

EDIT: In my case I've tried to reinstall system package with package manager. That's not supported, so I've got this error. Source of the error may differ in your case.

Answer 1

I got the same issue and did following to fix it.

1. Settings > Storage > Clear Cached Data
2. Settings > Apps > Uninstall the apps showing there. I had uninstalled my apps but it was showing there.
3. Restart and then everything went fine.

Answer 2

For MIUI users, apart for usual USB debugging option be sure to enable these settings as well:

Install via USB
USB debugging(Security settings)

then accept the prompt when you try installing app again.

Answer 3

Uninstalling the application would be enough to avoid this problem.

INSTALL_FAILED_UPDATE_INCOMPATIBLE

but sometimes even uninstalling the message is raised again, it occurs in Android OS 5.0 +, so this is the solution:

Go to Settings > Apps and you will find your app with the message:

"Not installed for this user"

We have to uninstall manually for all users!, then we can install our compiled application with no problems.

Another options:

• Remove the old application and install again.

• Use Android Debug Bridge command:

  adb uninstall [PACKAGE NAME]

Answer 4

Go to Setting/Apps/ Search for your app and unistall...

It´s worked for me

Answer 5

1. Go to Setting/Apps/ Search for your app and uninstall...
2. open command prompt and "adb uninstall "

It´s worked for me

Answer 6

If your Manifest file has this line -

android:sharedUserId="android.uid.system"

is causing this error! just comment this line and you are good to go!!