On 11/18/20 4:38 PM, H wrote: > I am a beginner when it comes to compiling applications and would appreciate suggestion how to fix the above. Thank you. Looks like a build failure that was mentioned here: https://github.com/pgmodeler/pgmodeler/issues/1259 I believe this reply is relevant: "It's not yet documented but you have to use the latest Qt version 5.11 or 5.12 and have C++14 enabled on your compiler. Make sure to use at least gcc 5.0 to get full support to C++14." I believe CentOS 7 includes Qt 5.9, so I wouldn't expect this application to build, there.