TiberiusPimpstik

I had this same issue, removing Kerbal Joint Reinforcement fixed it right away. I assume something about it doesn't play nice with the way the robotics joints were implemented and hopefully all it takes is an update to the plugin to ignore robotics joints.

Im basically in the same boat as you, I'm just pretty good at figuring things out. When you open the KAS project file for 1.1 in Visual studio there is a references section of the project, just right click on the references item, click add reference and then point it at the dlls from "Kerbal Space Program\KSP_x64_Data\Managed" for each of the references listed with a yellow icon next to them. Sorry if its not exactly clear, I just googled update ksp plugins and learned from there only a few days ago

KAS 1.1 builds for 1.7 just fine just have to update reference dlls, thankfully i tried it, i couldnt get 1.2 to build. https://imgur.com/a/ZNZjEsd If you really cant wait building 1.1 for 1.7.0 works just fine

I've (badly and with zero experience) compiled from the latest source with VS and after gutting out the save upgrader and changing a couple lines to fix errors VS helpfully guided me to... IT COMPILED! And the modules deploy once again! https://imgur.com/a/DWfDHuR