android 5.0 lollipop app install shows Unknown error code during application install: "-505"

Question

While downloading an app, an error dialog with this text shows up: Unknown error code during application install: "-505"

Answer 1

I've found the issue with "INSTALL_FAILED_DUPLICATE_PERMISSION".

If you have Android 5.0 and multi user enabled, check if you have the app that is causing problems in your "Guest" account and uninstall it. Then go back to your main user and try installing the app again. It worked for me! Hope Google fix this with multiple accounts.

Answer 2

Had this issue too. I was releasing Sandbox and Production apps with different package names, but same GCM permissions.

I started using ${packageName} in AndroidManifest.xml file.

I changed from

<!-- GCM specific permissions -->
<permission
    android:name="com.playgong.permission.C2D_MESSAGE"
    android:protectionLevel="signature"/>

<uses-permission android:name="com.playgong.permission.C2D_MESSAGE"/>

to

<!-- GCM specific permissions -->
<permission
    android:name="${packageName}.permission.C2D_MESSAGE"
    android:protectionLevel="signature"/>

<uses-permission android:name="${packageName}.permission.C2D_MESSAGE"/>

And in receiver's intent-filter from:

<category android:name="com.playgong"/>

to:

<category android:name="${packageName}"/>