Important
In Excel for Microsoft 365 and Excel 2021, Power View is removed on October 12, 2021. As an alternative, you can use the interactive visual experience provided by Power BI Desktop, which you can download for free. You can also easily Import Excel workbooks into Power BI Desktop.
Symptoms
Assume that you have a Unified Dimensional Model (UDM) cube that contains a calculate measure in Microsoft SQL Server 2014 Analysis Services (SSAS 2014). The calculate measure refers to a non-existing tuple in a Multidimensional Expressions (MDX) query. When you try to create a "BI Semantic Model for Power View" in SharePoint against the UDM cube, the power view reports cannot be created and you receive the following error message:
Note
Internal error: An unexpected exception occurred.
Resolution
The issue was first fixed in the following cumulative update of SQL Server.
Cumulative Update 2 for SQL Server 2014 /en-us/help/2967546
About cumulative updates for SQL Server
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.