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Altera_Forum
Honored Contributor
17 years agoError: top level design entity " " is undefined
we have problem in compiling VHDL code in Quartus II software. Every time we compile it shows the Error:top level design entity " file name" is undefined. We are even taking care of the case se...
Altera_Forum
Honored Contributor
17 years agoHello everybody from rainy southern Germany,
I had the same issue, and the tool gives you no sort of description what is wrong, I was missing my HDL file - it was not defined. As posted below, just check under Project - Add/Remove files in project. If you see no files listed then that is the problem. By the way, changing the severity of the error messages for HDL input to level 3 did not give me any additional info. This could be improved in my opinion. :confused: Cheers, Eric