Could not load type TrafficManager.Traffic.Data.VehicleState

Verified: February 2020

Symptom

You see an error on-screen or in the log file like this:

• Could not load type 'TrafficManager.Traffic.Data.VehicleState' from assembly ...

This happens if you upgrade from TMPE v10.x to v11.x.

Cause

It's caused by CSUR_TMPE_Laneconnector_Fix mod which is now obsolete.

Note: The mod is not in the Steam Workshop and seems to have been part of a closed beta test for new CSUR roads.

Solution

• Open Main Menu > Content Manager > Mods
• Find and remove CSUR_TMPE_Laneconnector_Fix mod (click small "(x)" button)
• Exit game to desktop, then relaunch game

Tip: If you are using CSUR, try the CSUR ToolBox mod which fixes a number of issues related to those roads.

Fixed?

If not, please contact authors of CSUR project for assistance.

Other issues? See: Troubleshooting