OpenCPN crash after building ocpn_draw_pi

[priyanka]

Dears,


I have built OpenCPN from source and then I built ocpn_draw_pi from the following git link.
https://github.com/jongough/ocpn_dra...ases/tag/1.6.0


OpenCPN worked fine right after installing this plug in.


But when I modified the code inside ocpn_draw_pi.cpp

just commented the following line



//dlg_return = OCPNMessageBox_PlugIn( m_parent_window, _("Use nearby Point?"),
_("OCPN Draw Point Create"),
(long) wxYES_NO | wxCANCEL | wxYES_DEFAULT );




Built it and installed. Then OpenCPN crashes with Segmentation fault (core dumped) error.


I removed the corresponding .so file from local/lib/opencpn , then OpenCPN works fine.


But when I removed the comment in ocpn_draw and built again or clone new copy of plugin , OpenCPN crashes every time,


Now I can not work with ocpn_draw,



But I do work with other pluins such as objSearch.
I could modify the code and see the changes in OpenCPN.



Anyone have solution to this problem.

[cagney]

I have built OpenCPN from source

Which source is that? The source for OpenCPN V5, the github master or something else?

[priyanka]

I built it from this link, (OpenCPN 5.0.522_



https://github.com/OpenCPN/OpenCPN

[cagney]

That is the developing, unstable branch.
What you experienced is not unexpected.
As been said in many places....don't expect any support regarding code that is changing daily.

Check this thread http://www.cruisersforum.com/forums/...ew-227965.html

Some discussion about the development here https://github.com/OpenCPN/OpenCPN/issues

The source code for OpenCPN v5 is here https://github.com/OpenCPN/OpenCPN/releases/tag/v5.0.0

[priyanka]

Thank you for the information.

May I know which is the released source code for ocpn_draw.
I have used https://github.com/jongough/ocpn_draw_pi/releases to clone.

[priyanka]

Hi,


Now its working. I think the problem might be with the OpenCPN version.


I installed OpenCPN 5.0.0 and now it perfectly works

[jongough]

If you want to change OD and used the latest version of OCPN you will need to use the latest version of OD, currently 1.6.30. There are changes to the way that OCPN works, particularly in finding data directories for plugins and initialisation, that may make any 'old' plugin not work. If you are using the released, 'production', version of OCPN then OD >=1.6 should work OK.


There is considerable development going on with the way plugins are installed and how they interact with OCPN that makes the non-production branch potentially unstable.

[priyanka]

Hi,


I got the same problem again.
The error is
Segmentation fault (core dumped),





I had done modification before on Ocpn_draw Plugin, it was working well.


Today I made some changes in the header files.

Then it made OpeCPN crash again.


I tried building both OpenCPN and Ocpn_draw again, still it crashes again.


I have used the following links


https://github.com/jongough/ocpn_dra...ases/tag/1.6.0
https://github.com/OpenCPN/OpenCPN/releases/tag/v5.0.0

[priyanka]

Hi


Here I am putting the link of my OpenCPN log file, Please take a look


https://docs.google.com/document/d/1...it?usp=sharing

[transmitterdan]

Originally Posted by priyanka

Hi


Here I am putting the link of my OpenCPN log file, Please take a look


https://docs.google.com/document/d/1...it?usp=sharing

Use gdb to make a backtrace. Nothing useful in the log. It crashes right after startup.

[jongough]

If you want to make changes or just compile your own version of OD you should be using tag 1.6.30 as the base. This version does work with both 5.0.0 and 5.0.522 of OCPN.



The OCPN API changed recently due to changes being made to the plugin installer and some of these are not backward compatible. When the compatability issues hit OCPN crashes with no information unless you are using a debugger and can see the statements where the issue is before the crash occurs.

[priyanka]

Hi I changed the OD version to 1.6.30,


And now its working good.


Thank you all.