Error during installation of OpenModelica nightly packages on Ubuntu 16.04

[Silvio Traversaro <pegua1@…>]

I do not know if this is a known issue or not, but one of the last updates of the OpenModelica nightly build broke the installation of the deb packages on Ubuntu 16.04 .
Trying to install the openmodelica package results in this error:

Errors were encountered while processing:
 /var/cache/apt/archives/libomsimulator_1.13.0~dev-1322-g53a43cf-1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Ubuntu 18.04 packages seems not to be affected by this.

We noted this issue both on a physical computer and on our docker-based CI infrastructure:
​https://travis-ci.com/robotology/gazebo-fmi/jobs/141109882

Downstream issue: ​https://github.com/robotology/gazebo-fmi/issues/25 .

[Silvio Traversaro <pegua1@…>]

Check in the log, it seems that the actual error message is the following:

dpkg: error processing archive /var/cache/apt/archives/libomsimulator_1.13.0~dev-1322-g53a43cf-1_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/omc/libomantlr3.so', which is also in package libomc:amd64 1.13.0~dev-1322-g53a43cf-1
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)

[Adrian Pop]

Duplicate of #5068.
We are working on fixing this issue.

[Silvio Traversaro <pegua1@…>]

Thanks a lot for the pointer, I was unable to spot that from the issue title.