3

Yes. I've read all other questions regarding this problem. Like this one:
Error 504 when downloading apps from Play Store?
It's the same problem as this one but with more background information and an other app:
How to fix installation error -504?

The details:
My device is an Ulefone Be Touch 2 running Android 5.0.

My connection is perfect. To be sure I tried different networks, among them are 3G, 4G and wifi on ADSL, VDSL, cable and fiber. I've also used Tor and 3 different VPN providers in 3 countries on 2 continents. Let's say I ruled the network out.

  • A single app does not install: OpenKeychain.
  • Currently I have 126 apps installed.
  • It does not install via desktop browser > play store > install button.
  • I have enough free space (40GB). The app is 7MB.
  • Re-adding Google account and clearing caches did not work.
  • Even a complete device wipe and re-install didn't work.
  • Downloaded the apk and tried manual installation, same error.

I also own a Nexus 7 (2013 wifi) and the app installs fine on that device.

  • 1) put the device in airplane mode for ~60 seconds, then reboot, turn off airplane mode, download again. OR TRY 2) turn off data/wifi for ~90 seconds, then turn back on, download again. ///you can also sideload the app. ///If the choices (1 or 2) help let me know and I'll post as an answer. ///Did you force stop apps before clearing data?? – HasH_BrowN Sep 17 '15 at 3:15
  • The more I read about it and reread what you wrote, I'm thinking you have an issue with your ROM. – HasH_BrowN Sep 17 '15 at 3:17
1

I think this is a bug in Lollipop, I found this on another app forum:

I’m getting the Error Code -504 (INSTALL_FAILED_UID_CHANGED) when installing App from Google Play

Try to erase the “/data/data/appnamespace” directory on your device and try again. This is a “bug” Android 5.0 Lollipop developer preview which was fixed in the final release version.

That (plus a reboot, remove + reinstall of the app and remove + replace of my google account) fixed this issue for me.

It definitely isn't a connectivity issue, and it's nothing to do with a 504 HTTP error.

  • I'm not sure that the namespace directory is for this app. I've tried to remove com.android.keychain and that didn't change anything. – Thijs Oct 5 '15 at 11:09
  • @Thijs I think they can change directories so it may be somewhere else – Keith Oct 5 '15 at 11:12

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.