Can't get my DSLR connected to my Ubuntu system. INDI server just won't go online with it and in the device manager I get the following error log:
2019-01-23T19:16:10: Driver indi_gphoto_ccd: indi_gphoto_ccd: symbol lookup error: indi_gphoto_ccd: undefined symbol: _ZN4INDI3CCD13ISSnoopDeviceEP8_xml_ele
Child process 4481 died
2019-01-23T19:16:10: Driver indi_gphoto_ccd: stderr EOF
2019-01-23T19:16:10: Driver indi_gphoto_ccd: restart #2
2019-01-23T19:16:10: Driver indi_gphoto_ccd: pid=4482 rfd=4 wfd=8 efd=9

And then he's trying it couple of times with same failed results.

Does anyone know what this means, what the problem could be and how to solve it?

Thanks, Willem Jan.

It's solved.
In one of the other posts I came across comments about older versions of libgphoto2 and how to update them. I followed that procedure:

sudo add-apt-repository ppa:mutlaqja/libgphoto2
sudo apt-get update
sudo apt-get -y dist-upgrade

This took a long time, and it looked like the whole OS was upgraded. Anyway, after that, the GPhotoCCD was working well and my DSLR is now happily snapping away.

Now gphoto crashes here right after starting Ekos. I upgraded gphoto from ppa but no change. Video and logfile attached.

I re-compiled and now it doesn't crash right at the start anymore. Once it crased after the first photo was taken. Right now it runs without crashing but I am wary... Does anybody experience similar issues?

You are using bleeding edge so you need to recompile libindi first then indi-gphoto since there was quite a few changes in the last few days for performance improvements.

Thanks for the reply! Yes, this is standard procedure here. indi, 3rdparty, kstars. The problem did not re-occur until now so I hope I'll never see it again.