Today I was configuring POS on Azure test/dev environment, I got very strange errors during compilation of classes node.
All these classes were belong to Payroll modules.
Error described that Symmetry variable is not declare.
Later I discover that reference of ste-net.dll is missing in AOT.
This mysterious dll (mysterious for me) is found at C:\Program Files (x86)\Microsoft Dynamics AX\60\Client\Bin
Yu can add its reference by right click on reference node In AOT
Click on browse and go to C:\Program Files (x86)\Microsoft Dynamics AX\60\Client\Bin
Select and click on ok
As reference is added into AOT. Compilation errors are gone.