General Description: When I attempt to open a testbench waveform (.tbw) after running "Delete Implementation Data" or "Switching Design Flows", the following error is reported:
"ERROR - Unable to open HDL source file <design>.VHF or <design>.VF"
Solution
This error occurs because the HDL model has been deleted.
You can force the HDL model to be regenerated as follows:
- Right-click on "View VHDL/Verilog Functional Model" under "Design Entry Utilities" in Project Navigator. - Select "Rerun".
This issue was fixed in the 5.1i software release.