Layer 2 error - Could not start extension

Customers will occasionally report an error similar to this when running a layer 2 scan.

"Could not start extension."

"The InterMapper Server cannot connect to the desired extension at 127.0.0.1:8185. The extension service is not responding."

This can be resolved by the following.

Please delete InterMapper_Settings/Extensions/com.dartware.switches/switches.pid file and relaunch intermapperd.

If that does not help you will need to reboot the system.

Note: Intermapper Settings can be found here per OS.