username field cannot be blank

Answered

wentao zou

• November 18, 2022 10:58
• Edited

hi,

I have a question about getting a gurobi licence. After I get an academic key and type grbgetkey (key) in Linux environment. An error pops up and shows username field cannot be blank. The version of gurobi is the newest 10.0.0. When I type code "whoami",it can show the user name correctly. When I run grbprobe, the USERNAME is Blank. However, When I run grbprobe under version 950, the USERNAME is NOT blank. How should I solve this problem?

Related to

• License

2

• 

  Marika Karbstein

  Gurobi Staff

  • November 18, 2022 12:01

  We have seen this issue before when installing Gurobi from conda, this makes Gurobi not able to retrieve your username. Leading grbgetkey and grbprobe to fail.

  Could you please try installing the full version of Gurobi? You may also use the package that only contains the licensing tools: How do I set up a license without installing the full Gurobi package? – Gurobi Support Portal

  -1
• 

  wentao zou

  • November 21, 2022 01:50

  

  

  

  I got this version from https://www.gurobi.com/downloads/gurobi-software/ .

  

  I think it is the full version, and I also try to run grbprobe download from the package that only contains the licensing tools. The user name is still blank.

  

  1
• 

  Marika Karbstein

  Gurobi Staff

  • November 21, 2022 07:16

  Can you please confirm whether you use an Anaconda environment?
  If so could you please run conda list and check whether there is an entry called krb5?
  You may need to install this if it's not there.

  -1
• 

  Onur Saka

  • December 16, 2022 14:45

  

  

  Hello,

  I am having the same issue when trying to upgrade my token server from v9.5.2 to v10.0.0. I am not using conda. I tried downloading both the full version and the license tools only, but in either case I get the following message when I try to obtain the license file with grbgetkey

  

  Are there any other solutions you would recommend?
  Thanks.

  1
• 

  Nils Alexandersson

  • March 27, 2023 13:38

  

  

  I also have the same issue, and haven't solved it working on it for several hours. 
  I use Linux Open Suse Tumbleweed, using the default recommended installation path /opt/.
  Running the command:

  grbprobe

  returns

  info  : grbprobe version 10.0.1, build v10.0.1rc0
  HOSTNAME=localhost.localdomain
  HOSTID=64829653
  PLATFORM=linux64
  USERNAME=
  CORES=4
  CPU=Intel(R) Core(TM) i5-8350U CPU @ 1.70GHz
  CONTAINERID=host:DPB00BID
  TAG=1679922454582221864960

  Although running the command:

  whoami

  Returns my usual username.
  I am trying to do a full install, not conda.

  1
• 

  Werner Baak

  • April 18, 2023 10:03

  

  

  I have the same issue here:

  grbgetkey xxxx leads to: 

  info  : grbgetkey version 10.0.1, build v10.0.1rc0
  info  : Contacting Gurobi license server...
  error : ERROR 101: Username field cannot be blank

   

  and grdprobe works but the username field is empty: "USERNAME=".

  How can I change that? What would be the right USERNAME? 

  2
• 

  Martin Heistermann

  • April 20, 2023 15:44

  

  

  I had the same issue on my machine, which was solved by changing my locale setting (i.e., LANG and LC_* environment variables); in particular, `export LC_ALL=C` fixed the issue and gurobi detected my username.

  1
• 

  Luis Torres

  • May 22, 2023 16:51

  

  

  Hi,

  I had the same issue. I am running Gurobi 10.01 on a CentOS 8.5 machine with an academic license. It was also solved setting `export LC_ALL=C` in my .bashrc file. (Thanks Martin Heistermann)

   

  1

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