Open dwg files on a Mac

Hello Dears,

i have a problem with open dwg files after installing on my mac os (El Capitan 10.11.6).
All program was installed with no problems and works well but when i choose dwg file to open i have a statement like this:



How can i open this?
Please for help and thanks in advance.

Although LibreCAD says it can open dwg files, this feature is only basic and experimental, and often will not work. Better use an external tool like the Teigha File Converter and convert the dwg to dxf.