Help 'Package File is Invalid'

[raocallaghan]

I have the HTC Wildfire.

Apps will download but when attempting to install I'm getting a 'package file is invalid' message. It seems to be for all apps and updates.

I've cleared the Market data & cache, forced stopped Market and I've deleted a bunch of apps, but still not working.

Please help!

 

[gavhen]

Havin the exact same problem myself, started 2 days ago and won't update any of my apps. Tried lots of things but nothing works, any solutions?