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Hannsii's avatar
Hannsii
Icon for New Contributor rankNew Contributor
1 month ago

Quartus Prime Lite 25.1 License Error - "Unable to checkout a license" (SALT_LICENSE_SERVER)

Hi everyone,

I'm trying to run a simulation in Quartus Prime Lite 25.1 on Windows, but it fails right away with this error:

"Unable to checkout a license. Make sure your license file environment variable (SALT_LICENSE_SERVER) is set correctly"

Does anyone had the same problem? And how can i fix it?

Thanks!

 

Installation & Licensing

3 Replies

  • paveetirrasrie_Altera's avatar
    paveetirrasrie_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    17 days ago

    We do not receive any response from you to the previous answer that I have provided. This thread will be transitioned to community support. 
    If you have a new question, feel free to open a new thread to get the support from Altera experts.
    Otherwise, the community users will continue to help you on this thread. 
    Thank you.
     

  • paveetirrasrie_Altera's avatar
    paveetirrasrie_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    26 days ago

    Hello Hanssi,

     

    Good day to you.

    Does the suggestion from our contributor helped?  Kindly do let us know if you need further clarifications.

     

    Regards,

    Pavee

  • sstrell's avatar
    sstrell
    Icon for Super Contributor rankSuper Contributor
    1 month ago

    Your setup in Quartus doesn't really matter for your issue since you're using the Lite edition.

    As for QuestaSim, it looks like you have the environment variable set up correctly.  Is this a newly generated license file?  Open up the .dat file and check the date and that the MAC address is correct for a network interface on your computer.

    You should also run lmutil lmdiag as suggested.