I cannot Export level 2 script from miniedit on my Ubuntu 20.04, It sends this error message:

Nguyen Thanh Nhu

2/22/24, 6:18 PM

Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python3.8/tkinter/__init__.py", line 1892, in __call__
    return self.func(*args)
  File "mininet/examples/miniedit.py", line 3163, in xterm
    if StrictVersion(MININET_VERSION) > StrictVersion('2.0'):
  File "/usr/lib/python3.8/distutils/version.py", line 40, in __init__
    self.parse(vstring)
  File "/usr/lib/python3.8/distutils/version.py", line 137, in parse
    raise ValueError("invalid version number '%s'" % vstring)
ValueError: invalid version number '2.3.0.6'

136

0 + 4

command-line

steeldriver

2/22/24, 9:16 PM

It looks like you are using an unsupported -dev or rc release of mininet. See for example [encounter error 'invalid version number' #1094](https://github.com/mininet/mininet/issues/1094)

Nguyen Thanh Nhu

2/23/24, 3:17 PM

I search but can't find how to change mininet version from 2.3.0.6 to 2.3.1

steeldriver

2/23/24, 3:26 PM

So how did you install version 2.3.0.6? According to `apt policy mininet`, the default version for Ubuntu 20.04 is 2.2.2

Nguyen Thanh Nhu

2/23/24, 5:01 PM

I have fixed and exported successfully, thank you for your discussion! 1. Edit version: $ cd mininet $ git tag $ git checkout -b mininet-2.3.1b1 2.3.1b1 $ cd .. $ mininet/util/install.sh -a 2. See mininet version (currently 2.3.1b): $ mn --version Next, Run on python2.7 with the command: $ alias python=/usr/local/bin/python2.7 3. Now check the command: $ python -V it still shows Python 3.8.10 but don't worry 4. Run miniedit: $ sudo ~/mininet/examples/miniedit.py

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EN: I cannot Export level 2 script from miniedit on my Ubuntu 20.04, It sends this error message:

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