- KB 2851881 - Error is thrown when trying to generate Power View Reports (update in \SYP\Classes\SrsReportHelper)
- KB 2850972 - Cumulative Update 6 for AX 2012 R2 (KB 2851881 is included)
I have not yet verified the hotfix, but I will do that this week (hence "Likely solution").
Hopefully this will save valuable time trouble shooting this issue.
I'm working my way through a CU6 advanced update right now (Hyper-V on my laptop) and I can verify that the missing method finally is defined and without testing deploying the EP site yet, things looks more promising. From my point of view, this is a really bad example of quality assurance from Microsoft (end of discussion).
Here is what the class SRSReportHelper looks like after implementing CU6 that contains the fix: