Package: apt Version: apt 0.5.9 for linux i386 compiled on Aug 10 2003 19:57:57 when i invoke apt-get source bash=2.05b-9.1, apt-get exit with error message: E: Unable to find a source package for bash i tried it with some other packages too and it seems like the error occures when letter character is in version (like 2.05b-9.1 or 3.3.2-0pre2). I used the version values from dselect. bye