Hello
I have installed a version of Distro Astro with the version 2.2.0 of KStar on a dedicated computer.
I have installed the index files in usr / share / astrometry and then I have configured / etc / astrometry (/ usr / share / astrometry).
By running the simulation with simulator telescope and CCD simulator, when I run the alignment, I always get the following messages:
Capturing image
Image received
Starting Solver
Solver failed
My system is based on a raspberry and when I use it in another kstar on virtual machine to another computer, the astrometry solver works properly.
Can someone help me? Thank you

2.2.0 is an ancient unsupported version. Either get Kubuntu 16.04 and install latest KStars/INDI from PPA, or ask DistroAstro to release a version based on Ubuntu 16.04

EDIT: for the simulator stuff to work, you need to install the General Star Catalog (GSC)