OpenStudio OSMSerializer

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I have OpenStudio 3.4 and would like to import IFC file so have installed OSMSerializer using a rather old guide. All appears to be OK until I go to Import IFC in OS and I get "BIMServer is not connected correctly. Please check if BIMServer and make sure that your username and password are valid" I have tried Java jdk 7 and 8 but still get the same result. The main issue is the the BIMServer does not appear to be running. Is OSMSerializer no longer supported in OS? Regards