Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
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Quartus Prime Simulation Waveform Editor MGLS

Honored Contributor II

I'm having a problem when trying to run a simulation using the Simulation Waveform Editor in my Quartus Prime Lite Edition. When I try to run a simulation a message appears saying: 


"Failed to load required MGLS dll." 


After clicking OK I get: 


"Could not load mgls.dll from expected location (c:\altera_lite\16.0\modelsim_ase\win32aloem\mgls.dll)


And then VLM.exe crashes. 


I have no idea what this means, and trying to search has returned nothing. Can any advice be given on this? 


Many thanks in advance.
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1 Reply
Honored Contributor II



The mgls.dll error is related to the license since we are using Lite Edition which does not require the license. 

Try to reinstall ModelSim. 


Best Regards, 

Anand Raj Shankar 

(This message was posted on behalf of Intel Corporation)