This error is seen in the Viewlogic flow when the Xilinx M1 Implementation Tools have not been installed on the machine that COREGen is running on. When the vllink.bat file invokes NGDBUILD, it fails with the following error message:
"Table 15 E Error starting PM Libbasng.dll file is linked to missing export Libbasut.dll"
Install the Xilinx M1.4 Implementation Tools and/or check that it is set up properly. (Please refer to the Xilinx QuickStart Guide and the Release Document for the Xilinx Implementation tools for information on installation and setup.)