Zain

@ChristopherLu did you try @blairlpp's solution ?

@ChristopherLu What steps are you following. Its about dependency which if not fulfilled properly creates issues.

@Young532042725 check if you can start g2o viewer without the file i.e just run the ./g2o_viewer

@Young532042725 try the solution [here](https://github.com/RainerKuemmerle/g2o/issues/133) it worked for them

@IcneDy sorry for the late response. Its been a while since I used the viewer but as I remember it compiles fine in ubuntu 18.04. You wont have to go...

for fedora I havnt tried it. Can you let me know of any error / screen response. and did u try it with sudo ?

@IcneDy so its working ? and the warning message is most probably some folder permission issue. Can be ignored I guess.

@skasperski I am also having the same issue. I want to use g2o under ros so that I can include publisher and subscriber using ros header files but I am...

@skasperski thanks alot :)

@Bradysm Actually I didnt try the approach mentioned above. Whats the error message you are getting ?