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AX 2012 Visual Studio Projects not supported in Workflow Activities
The build workflow activities use XPOs to import code into AX and do the build. The CombineXPOs step does not support Visual Studio projects, as they are not XPOs in TFS but the actual VS files.
1) support VS projects in the CombineXPO - would require text encoding of binary files
2) find another mechanism to import the VS projects separately - this could prove to be a timing problem where X++ code depends on VS projects or the other way around - which do you import first?