SAP Message Q8300 - SAPOSCOL not running (shared memory available)

Diagnosis This may be because no collector is running and shared memory is activeor a collector has never run and therefore shared memory was nevercreated. Procedure Run a collector, before starting the R/3 System. The collector fromRelease 1.2A may be running. However the System is Release 2.0A. Thecollector for Release 2.0A is new and uses a shared memory key. Youmust start the new collector for Release 2.0A.