Thanks for taking your time to report this issue and help making Ubuntu better.
I get the same error message when attempting to start freeplane 1.6.6-1 on Ubuntu Artful.
It looks like the underlying issue is the file /usr/share/freeplane/core/org.freeplane.core/META-INF/MANIFEST.MF which is present in the Debian package [1], but the exact same version doesn't contain it in Ubuntu [2]. Not sure how that might happen, but looks like an Ubuntu-only issue.
Thanks for taking your time to report this issue and help making Ubuntu better.
I get the same error message when attempting to start freeplane 1.6.6-1 on Ubuntu Artful.
It looks like the underlying issue is the file /usr/share/ freeplane/ core/org. freeplane. core/META- INF/MANIFEST. MF which is present in the Debian package [1], but the exact same version doesn't contain it in Ubuntu [2]. Not sure how that might happen, but looks like an Ubuntu-only issue.
[1] https:/ /packages. debian. org/sid/ all/freeplane/ filelist /packages. ubuntu. com/artful/ all/freeplane/ filelist
[2] https:/