This error will arise in many different cases.
1. Some time it thrown when you open any reports in Dynamic AX 2012
2. Some time it thrown when opening only retail reports in Dynamic AX 2012
3. While connecting to the SSAS from SSMS
Start the following services
· Sql Server Analysis Services
· Sql Server Agent
· Sql Server
· Sql Server Browser
· Note: Please check “ Sql Server Analysis Services “ Status once you start remaining service may impact on stopping this service.