Comment 34 for bug 712377

I have tried installing World of Goo but I got the same problem again. I've got the download from the humble bundle site, so it's perfectly trusted. I get the same problem too with Google App Inventor, so it's not a bug in the World of Goo package.
I've also tried installing Skype, this does work for some mysterious reason.

I'm running 11.04 with the latest updates.
Please note that I do have a PPA with the latest daily of Unity, but I don't think that's the problem.

Here's the error message (with Google App Inventor, from the regular Google site):
"
The package is of bad quality
The installation of a package which violates the quality standards isn't allowed. This could cause serious problems on your computer. Please contact the person or organisation who provided this package file and include the details beneath."
And here are more details:
"Lintian check results for /home/sjoerd/Downloads/appinventor-setup_1.1_all.deb:
E: appinventor-setup: arch-independent-package-contains-binary-or-object ./usr/google/appinventor/commands-for-Appinventor/adb

E: appinventor-setup: arch-independent-package-contains-binary-or-object ./usr/google/appinventor/commands-for-Appinventor/emulator

E: appinventor-setup: arch-independent-package-contains-binary-or-object ./usr/google/appinventor/commands-for-Appinventor/mksdcard

"

I run Ubuntu 11.04, latest updates. I do run the 64-bit edition.
And again, Skype didn't install before and now it does. But the fix doesn't work for all software, in fact, it doesn't work for most software.

Altough I don't think it's really relevant, here are my hardware specs:
AMD Athlon II X4 640 3.0GHz
2GB DDR2 RAM 800MHz
500GB Hard disk, 7200RPM
ATI RADEON HD3450 Videocard, 256Mb
And the basic stuff (17" Monitor, USB, disk drive etc..)