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.

Questa not launching



After installing Quartus and Questa together and setting up the licence it seems there is a problem with the Questa launch script. I looked at the license file and it seems to be normal.




Here is the output on the console when trying to launch Questa from quartus :

Info: *******************************************************************
Info: Running Quartus Prime Shell
    Info: Version 21.1.1 Build 850 06/23/2022 SJ Lite Edition
    Info: Copyright (C) 2022  Intel Corporation. All rights reserved.
    Info: Your use of Intel Corporation's design tools, logic functions 
    Info: and other software and tools, and any partner logic 
    Info: functions, and any output files from any of the foregoing 
    Info: (including device programming or simulation files), and any 
    Info: associated documentation or information are expressly subject 
    Info: to the terms and conditions of the Intel Program License 
    Info: Subscription Agreement, the Intel Quartus Prime License Agreement,
    Info: the Intel FPGA IP License Agreement, or other applicable license
    Info: agreement, including, without limitation, that your use is for
    Info: the sole purpose of programming logic devices manufactured by
    Info: Intel and sold by Intel or its authorized distributors.  Please
    Info: refer to the applicable agreement for further details, at
    Info: Processing started: Tue Oct 18 11:33:01 2022
Info: Command: quartus_sh -t /home/germano/intelFPGA_lite/21.1/quartus/common/tcl/internal/nativelink/qnativesim.tcl --rtl_sim soc_system soc_system
Info: Quartus(args): --rtl_sim soc_system soc_system
Info: Info: Start Nativelink Simulation process
Info: Info: Starting NativeLink simulation with Questa Intel FPGA software
Error: Error: Can't launch the Questa Intel FPGA software -- the path to the location of the executables for the Questa Intel FPGA software were not specified or the executables were not found at specified path.
Error: Error: You can specify the path in the EDA Tool Options page of the Options dialog box or using the Tcl command set_user_option.
Error: Error: NativeLink simulation flow was NOT successful
Info: Info: For messages from NativeLink scripts, check the file /home/germano/Documents/embedded_time_tagger_cv/soc_system_nativelink_simulation.rpt File: /home/germano/Documents/embedded_time_tagger_cv/soc_system_nativelink_simulation.rpt Line: 0
Error (23031): Evaluation of Tcl script /home/germano/intelFPGA_lite/21.1/quartus/common/tcl/internal/nativelink/qnativesim.tcl unsuccessful
Error: Quartus Prime Shell was unsuccessful. 4 errors, 0 warnings
    Error: Peak virtual memory: 586 megabytes
    Error: Processing ended: Tue Oct 18 11:33:05 2022
    Error: Elapsed time: 00:00:04
    Error: Total CPU time (on all processors): 00:00:02

Here is the ouput when trying to launch from terminal :

~/intelFPGA_lite/21.1/questa_fse/linux_x86_64 $ ./vsim
Unable to find the license file.  It appears that your license file environment variable (e.g., LM_LICENSE_FILE) is not set correctly.
Unable to checkout a license.  Vsim is closing.
** Error: Invalid license environment. Application closing.

I am on Ubuntu 20.04.

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3 Replies

1) The error showed that you have not set the Questa executable path in the Quartus, go to Tools > Options > EDA Tool Options to setup the path. The path should similar to <path directory>/intelFPGA_lite/21.1/questa_fse/linux_x86_64

2) It seems license file environment variable is not set up yet.

You may checkout this forum post.

Best Regards,

Richard Tan

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 9/10 survey.

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May I know does my latest reply helps? Do you able to solve the issue?


Richard Tan

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As we do not receive any response from you on the previous question/reply/answer that we have provided. Please login to ‘’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.

Thank you.

Best Regards,

Richard Tan

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 9/10 survey.

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