Dynamics AX 2012 R3 CU8 now requires Visual Studio 2013. If you're experiencing a crash or hang when attempting to build projects, after installing CU8, please follow the steps outlined below.

 

1)     Open your System Properties. (Right-click start menu, select System, then Advanced System Settings)

 

2)     Click the Advanced tab

3)     Click the Environment Variables button

4)     Under the System Variables block, add the following value:

       a.  Variable name = COMPLUS_LoaderOptimization

       b.  Variable value = 1

 

5) Once the value has been loaded, restart the AOS service.

6) Close any instances of Visual Studio, re-open and attempt building another AX project or report.