I have got SSMS v 17.9.1
and Visual Studio 2017 v 17.9.1
installed. I have created many olap cubes so far but today a new issue surfaced. Trying to process the newly created cube, I've got the following error
Method not found: 'Microsoft.AnalysisServices.Server Microsoft.SqlServer.Management.SqlMgmt.CDataContainer.get_OlapServer()
There is a bug in the v2.5 of the Analysis Services Projects extensions for Visual Studio. There is a note on this page with a link to the v2.2 download suggesting that people downgrade to this version until Microsoft can fix the 2.5 release.