trinity-apt-problem

root@schreiberstein:/home/alex# sudo apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  kdelibs5-data
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  qt3-apps-dev
The following NEW packages will be installed:
  qt3-apps-dev
0 upgraded, 1 newly installed, 0 to remove and 2 not upgraded.
103 not fully installed or removed.
Need to get 2184kB of archives.
After this operation, 10.0MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Err http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-nightly-builds/ubuntu/ lucid/main qt3-apps-dev 3:3.3.8-d-0ubuntu0+sr71+pr178~lucid
  404  Not Found
Failed to fetch http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-nightly-builds/ubuntu/pool/main/q/qt-x11-free/qt3-apps-dev_3.3.8-d-0ubuntu0+sr71+pr178~lucid_amd64.deb  404  Not Found
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
root@s