Sol needs 1.25.41 or higher to work. With the Shader patch versions the new weatherFX engine was introduced and it was activated by default. If you don't have an implementation (like sol) it do not know what to do and you got those errors. You could deactivate weatherFX or just install Sol after it.
OK so how can i totally get rid of Shaders patch preview 40 as i have weather FX tab with preview 40?
I think somewhere it all got messed up.