One of the issues users may encounter in a mixed language design is a linking issue between a VHDL component and a Verilog module. For this issue, users can refer to the <impl_name>_comp.linkerlog file on the impl_name --> synwork folder.
This would show details on why the linking between the Verilog module and the VHDL component failed.
In the example below, the linking failed because of a mismatch in the number of ports between the Verilog module and the VHDL component.