After the installation, when I try to execute http:\\localhost\OLAP\msmdpump.dll (in browser) returns : http://schemas.xmlsoap.org/soap/envelope/"> - - http://schemas.xmlsoap.org/soap/envelope/"> XMLAnalysisError.0xc10e0002 Parser: The syntax for 'GET' is incorrect. -
No, this is not a problem. This is exactly what you should get when XMLA is working properly. Next, login to RP and go to Admin > Connections > select the XMLA and click Test.
Does your SSAS instance have any OLAP databases? Yes, yes make sure that each OLAP database has an SSAS role with user your use (or everyone) assigned to it.