Now the installation.
# dpkg -i testpaket.deb
(Reading database ... 92720 files and directories currently installed.)
Preparing to replace bz-losetup 1.0 (using testpaket.deb) ...
Unpacking replacement bz-losetup ...
dpkg: error processing testpaket.deb (--install):
package control info rmdir of `opt' didn't say not a dir: Directory not empty
Errors were encountered while processing:
(Important - the package was not build from the source - building from source and installation is fine)
three month ago, i build packages with dpkg -b ...
thx for help