"Package File is invalid" happens all the time

[couch patato]

See? It happens all the time!
Obviously, clearing Google Play cache and data does not work. It still gives me this message when I try to install any app from Google Play.

[EyeB]

I had this before, I think I had to uninstall play store then install it back (or used titanium backup for a backup of it) anyways it had to go through a reinstall, like what demon above suggested

that or you uninstalled/disabled/froze something that it needs. I had this problem when I was learning what things I shouldn't touch lol.

Try fixing permissions too if you run out of ideas :S that seems to help on somethings

[couch patato]

Originally Posted by EyeB

I had this before, I think I had to uninstall play store then install it back (or used titanium backup for a backup of it) anyways it had to go through a reinstall, like what demon above suggested

that or you uninstalled/disabled/froze something that it needs. I had this problem when I was learning what things I shouldn't touch lol.

Try fixing permissions too if you run out of ideas :S that seems to help on somethings

To use Titanium Backup,do i have to get my phone rooted?
And this is the app that you are talking about, right?
https://play.google.com/store/apps/d...umBackup&hl=en

[cisprakash]

I have got the same problem but it may be remove by doing this-

Go into Settings > Applications > Manage Applications > Market/Play store > delete the cache and data.

[couch patato]

Originally Posted by cisprakash

I have got the same problem but it may be remove by doing this-

Go into Settings > Applications > Manage Applications > Market/Play store > delete the cache and data.

Actually, i often go into Settings > Applications > Manage Applications >Google Play>Clear cache, And it does not work. But it will be normal again later.
However, after I tried to clear Google Play data 2 days ago, I haven't been unable to install any app for 2 days now.

[cisprakash]

Then it may have another problem.