After running the update Android 5.0 Lollipop on some devices when using the Google Play Store has a new problem. When you try to install an application from the store smartphone or tablet displays the message: "Unknown error code 505". For the convenience of further narration will be called the problem a "505 error". This is one of a fairly common errors that can occur when you install the application. Moreover, the game is downloaded without problems, and does not wish to be established, as reported and Android-powered device.
Judging by the numerous complaints from users, problems with the installation of games at the version Android 5.0 Lollipop appear on the device for the most part with the applications that are installed "on air" via Adobe Air. Especially not lucky owners of Nexus 7 2012 release - a soft tablet simply "can not stomach." In popular applications (RedTeam, Bingo Blitz, Evernote and many others) have their own icons that disappear when you update the operating system. As a result, there is the same "Error 505" when you try to reinstall the existing component installation.
How it works: Application icons are gone. When you go in the Google Play Store, it offers, in particular, and applications that are hidden and not uninstalled (removed) from the device. Trying to remove hidden applications also did not succeed - they are not visible and select them for removal impossible. But when you try to re-download and install those same invisible device will program "Error 505".
Why it happens: The cause of the problem is not exactly identified, but presumably it is an incompatible version of the operating system (in this case Android 5.0 Lollipop) and applications based on Adobe Air. From this perspective, it is logical that are incompatible with the operating system installed programs disappear and are not shown in the menu.
Solution: If you have already received the upgrade you OS for your device "over the air" to version Android 5.0 Lollipop, perform the System Restore, or make a factory reset. This is guaranteed to save you from the "505 Errors". If you do not, the problem has not disappeared. And do not forget to clear the cache by following the chain Menu> Settings> Applications> Google Play Store> Clear the cache. Similarly to be cleaned, and data.
"Unknown error code 505" in Google Play: solution "Unknown error code 505" in Google Play: solution
In case after a reset or restore the system, you reset the device, and the error still persists, try another way. If you use Adobe Air 15, try to use Adobe Air 14 and create a package APK, which contains both the application and associated runtime version AIR (captive-runtime). With high probability the problem will be solved.
If you are familiar with the Android Debug Bridge, use it to uninstall the application (if they are just hidden and not completely uninstalled), and then try installing again from the Google Play Store.
It's only emergency measures that can be taken when a "505 Error". Let's hope that application developers will soon find out the reason of incompatibility of software and solve the problem fundamentally.