Did you ever solve this? I am getting the same error.
FYI, I restarted the atriumtomcat6 services & the error went away. Hope this helps!
I also restartet the atriumtomcat6 services and the error still occurs .
- Log into all mid tier web servers
- Shut down apache tomcat on all servers.
- Remove the \ARSystem\midtier\PluginsCache folder (make a backup just in case)
- Start up the apache tomcat service on all servers
See if that helps.
I'm having the same exact problem. I even deleted the "\ARSystem\midtier\PluginsCache folder" and restarted the tomcat but still it giving the same error while opening IMD.
there was an error reading the Atrium:ExplorerPlugin form