{melodic} cv-bridge broken

[maroessler]

Hi,

I am currently working with ros1-melodic thud. I'm having some problems getting the cv-bridge to work. The package builds fine but it is having problems executing.

I managed to reproduce the error by trying to import: from cv_bridge.boost.cv_bridge_boost import getCvType in a Python script.

It throws this error: ImportError: /opt/ros/melodic/lib/python2.7/site-packages/cv_bridge/boost/cv_bridge_boost.so: undefined symbol: _ZN5boost6python6detail11init_moduleER11PyModuleDefPFvvE

I suspect it has something to do with compiling cv-bridge with libboost_python37 instead of a Python 2 version.

Can anyone verify that this error exists and is not a problem on my part?

Regards Michael

[shr-project]

Hi,

I suspect it has something to do with compiling cv-bridge with libboost_python37 instead of a Python 2 version.

Yes, this is very similar to what I was seeing with pinocchio in 2b77b41d04

Can anyone verify that this error exists and is not a problem on my part?

I don't think this is issue in your build, cv-bridge from melodic isn't tested in runtime at all by our CI (only build testing it), with dunfell I see an error as well:

root@qemux86-64:~# PYTHONPATH=/opt/ros/melodic/lib/python2.7/site-packages LD_LIBRARY_PATH=/opt/ros/melodic/lib/ python -c "from cv_bridge.boost.cv_bridge_boost import getCvType"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: /usr/lib/libboost_python38.so.1.72.0: undefined symbol: _Py_tracemalloc_config

[shr-project]

Fails similarly with gatesgarth melodic:

root@qemux86-64:~# PYTHONPATH=/opt/ros/melodic/lib/python2.7/site-packages LD_LIBRARY_PATH=/opt/ros/melodic/lib/ python -c "from cv_bridge.boost.cv_bridge_boost import getCvType"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: /usr/lib/libboost_python38.so.1.74.0: undefined symbol: _Py_tracemalloc_config

With Foxy on Gatesgarth this import test works OK.

[robwoolley]

Closing as Melodic is no longer supported.