Building with Sofa v20.06 or master

[amackeith]

Hello,

I am trying to build Sofa with STLIB and softrobots plugins with v20.06.

However I get the error: (running ubuntu 20.04 more output
configure_output.txt
attached)

CMake Error at /home/arthur/Documents/sofa/plugins/STLIB/CMakeLists.txt:42 (sofa_create_package_with_targets):
Unknown CMake command "sofa_create_package_with_targets".

I noticed the binaries on the softrobotic webpage were for v19.04 so I was wondering if this was an issue with the version of Sofa I am using?
Is there a version of STLIB that is compatible with v20.06? Or could this be a different kind of problem?