Why does MATLAB not launch from the PlanAhead tool? Instead, the following error occurs:
Internal Data Exception: Could not locate Matlab
If the model source path has white space in it, then this will generate the error message. Removing the white space resolves the error message.
This has been fixed in version 2012.2 of the tools.
For System Generator for DSP Release Notes from other versions, see (Xilinx Answer 29595).