UnicodeDecodeError: 'utf-8' codec can't decode byte 0xbf in position 42: invalid start byte

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kaizhe zhang

• June 13, 2023 07:50

I Meet the error :

"Traceback (most recent call last):
  File "E:/gurobi952/win64/examples/python/mip1.py", line 19, in <module>
    m = gp.Model("mip1")
  File "src\gurobipy\model.pxi", line 68, in gurobipy.Model.__init__
  File "src\gurobipy\gurobi.pxi", line 32, in gurobipy.gurobi._getdefaultenv
  File "src\gurobipy\env.pxi", line 62, in gurobipy.Env.__init__
  File "src\gurobipy\exception.pxi", line 20, in gurobipy.GurobiError.__init__
  File "src\gurobipy\extern.pxi", line 19, in gurobipy.__bytestostring
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xbf in position 42: invalid start byte"

even when I RUN the example code "mip1.py"

please, how to solve it?

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• 

  kaizhe zhang

  • June 14, 2023 00:18

  

  

  

  This problem happens in my new PC and my old PC runs correctly. Besides, I log the same account in these two PCs. I AM not sure wether I can use the same account for two PCs? Thanks.

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• 

  Riley Clement

  Gurobi Staff

  • June 14, 2023 04:15

  Hi Kaizhe,
  
  I found a similar post
  https://support.gurobi.com/hc/en-us/community/posts/360075553792-UnicodeDecodeError-when-i-debug-the-programm-with-Gurobi
  
  Is it possible that the solution is the same?

  - Riley

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  kaizhe zhang

  • June 14, 2023 11:33

  

  

  

  Thanks Riley. I check the path and no chinese in it. I think I need to apply for a new license for my new PC. Maybe it will work.

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• 

  Riley Clement

  Gurobi Staff

  • June 14, 2023 11:49

  Yes, I think you're right.  Let's try that and see if it resolves the issue. - Riley

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