PicoScope6GTK requires mono installation for operation. CentOS6 and derivatives don't provide this requirement. Yet there is workaround using packages available on opensuse.download.org server. To get mono requirement for PicoScope6GTK on Centos6, run the following steps in the terminal:
Error: Package: picoscope-6.11.8-4r3.noarch (picoscope)
Requires: mono(Microsoft.VisualBasic)
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
The repository doesn't provide mono-basic package. Maybe you could source it from somewhere else? For example: https://www.rpmfind.net/linux/RPM/opens ... oarch.html
(then download and rpm -i )
I'm not sure though if it won't need any more dependencies.