The class PropVehCount.PropVehCount could not be loaded
Symptoms
You see errors on-screen or in the log file like this:
The class PropVehCount.PropVehCount could not be loaded, used in PropVehCount
or
The class PropVehCount.MyBehaviour could not be loaded, used in PropVehCount
Usually both are shown one after the other.
Cause
It's the AutoLineBudget mod.
The mod also seems to be using a very old version of .Net Framework (v2; game uses v3.5) and is published as a "Camera Script" rather than a "Mod".
It is possibly due to conflict with another mod that alters transport line budgets, such as an auto-budget mod, or mods such as IPT (Improved Public Transport) or TLM (Transport Lines Manager). However, considering the mod is somehow in the "Cinematic Cameras" category we suspect the error is in the AutoLineBudget mod itself.
Solution
Exit game to desktop
Unsubscribe the mod
Was it Fixed?
If not, check to see if you have other versions of the mod (maybe different workshop ID than the one linked above).
Other issues? See: 👉 Troubleshooting