Intel® FPGA Software Installation & Licensing
Installation and Licensing that’s includes Intel Quartus® Prime software, ModelSim* - Intel FPGA Edition software, Nios® II Embedded Design Suite on Windows or Linux operating systems.
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Quartus prime lite issue with simulating and licence


hi all, 

I download and install quartus lite edition v21. I create and check a schematic but when I want to simulate with uniiversity program VWF,  I have an error (see below) about a licence requierement. but for lite edition I didn't see any licence. can you help me on this please?



** Running the ModelSim simulation ****

c:/intelfpga_lite/21.1/questa_fe/win64//vsim -c -do

Unable to checkout a license. Make sure your license file environment variable (e.g., LM_LICENSE_FILE)

is set correctly and then run 'lmutil lmdiag' to diagnose the problem.

Unable to checkout a license. Vsim is closing.


** Error: Invalid license environment. Application closing.



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2 Replies



Welcome to Intel forum. Could you help to request the Questa Sim Starter Edition free license again here        

1) Go to Sign up for Evaluation or Free licenses

2) Select Questa*-Intel® FPGA Starter Edition SW-QUESTA

3) # of Seats is always 1

4) Check the T&C box

5) Click Get License button

The license will be sent to email that you register with

But before that, could you help clear your web browsers cache/temporary internet files (if possible, shutdown your PC and restart back) and sign back to SSLC  using Google chrome and see how things go.

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We have not heard from you and It is not recommended to keep a Case idle too long without activities. I will now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.

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