Can't export octomap file

Posted by Hugh on
URL: http://official-rtab-map-forum.206.s1.nabble.com/Can-t-export-octomap-file-tp2743.html

Hi, I'm a Rtabmap beginner.
I installed and run Rtabmap successful.
I try to export my result to octomap but the button is locked.
How should I solve this problem? TKS!