[mcstas-users] McStas 3.0 - problem starting mcgui on Ubuntu 20.04

[Richard Wagner]

Dear Peter,

just to let you know.

I managed to  get it working with an installation of pyqt5-tools
for my system:
sudo pip3 install pyqt5-tools

Best,

Richard

ps - I CCed to mcstas-users in case someone else has the same issue


On 03.02.21 13:39, Peter Kjær Willendrup wrote:
> Dear Richard,
>
>
> This is indeed a pity, perhaps you can find a way to hack the 
> shell-script executing mcgui (/usr/bin/mcgui) to hard-code using the 
> system-provided Python libs only?
>
>
> Best
> Peter
>
>
>> On 3 Feb 2021, at 13.17, Richard Wagner <wagnerrichard at ill.fr 
>> <mailto:wagnerrichard at ill.fr>> wrote:
>>
>> Dear Peter,
>>
>> thanks for the fast answer.
>>
>> With your suggestion below I can start mcgui.
>>
>> Only downside is that now my Jupyter installation is not working anymore.
>>
>> But I'll try to find a solution for that.
>>
>> Best,
>>
>> Richard
>>
>>
>> On 03.02.21 11:07, Peter Kjær Willendrup wrote:
>>> Dear Richard,
>>>
>>>
>>> Based on the ImportError reference to 
>>> /usr/local/lib/python3.8/dist-packages/, this to me looks like a 
>>> clash with locally installed Python-modules…
>>>
>>> Our Debian-packages rely on the Debian/Ubuntu-provided version of 
>>> PyQt, Qscintilla etc., you may have installed these earlier as a 
>>> local version for some other software.
>>>
>>> My guess is that if you (as an experiment) rename 
>>> your /usr/local/lib/python3.8/ folder to e.g. 
>>> /usr/local/lib/python3.8.GONE mcgui will run just fine.
>>>
>>>
>>>
>>> Best,
>>> Peter
>>>
>>>
>>>
>>>> On 3 Feb 2021, at 10.00, Richard Wagner <wagnerrichard at ill.fr 
>>>> <mailto:wagnerrichard at ill.fr>> wrote:
>>>>
>>>> Hi,
>>>>
>>>> just installed McStas 3.0 and have the following problem after an 
>>>> install on Ubuntu 20.04.
>>>>
>>>> with
>>>> cd  /etc/apt/sources.list.d
>>>> sudo wgethttp://packages.mccode.org/debian/mccode.list
>>>> sudo apt-get update
>>>>
>>>> sudo apt-get install mcstas-suite-python-ng
>>>>
>>>>
>>>> mcgui wont start and gives the following error message:
>>>>
>>>> /usr/bin/mcgui: 14: [[: not found
>>>> Traceback (most recent call last):
>>>>   File "<string>", line 1, in <module>
>>>> ImportError: 
>>>> /usr/local/lib/python3.8/dist-packages/PyQt5/Qt/lib/libQt5Core.so.5: 
>>>> version `Qt_5.15' not found (required by 
>>>> /usr/local/lib/python3.8/dist-packages/PyQt5/Qsci.abi3.so)
>>>>
>>>> I'm completely new to the software, so
>>>> perhaps I'm missing something completely obvious.
>>>> Any hints would be highly appreciated.
>>>>
>>>> thanks in advance
>>>>
>>>> Richard
>>>> _______________________________________________
>>>> mcstas-users mailing list
>>>> mcstas-users at mcstas.org <mailto:mcstas-users at mcstas.org>
>>>> https://mailman2.mcstas.org/mailman/listinfo/mcstas-users
>>>
>>>
>>>
>>>
>>> Peter Kjær Willendrup
>>> Forskningsingeniør, Specialkonsulent
>>> Næstformand for DTU Fysik LSU
>>>
>>> DTU Physics
>>>
>>>
>>>
>>>
>>>
>>> Technical University of Denmark
>>>
>>>
>>>
>>>
>>>
>>>
>>> Department of Physics
>>> Fysikvej
>>> Building 307
>>> DK-2800 Kongens Lyngby
>>> Direct +45 2125 4612
>>> Mobil +45 2125 4612
>>> Fax +45 4593 2399
>>> pkwi at fysik.dtu.dk <mailto:pkwi at fysik.dtu.dk>
>>>
>>
>> _______________________________________________
>> mcstas-users mailing list
>> mcstas-users at mcstas.org <mailto:mcstas-users at mcstas.org>
>> https://mailman2.mcstas.org/mailman/listinfo/mcstas-users
>
>
> Peter Kjær Willendrup
> Forskningsingeniør, Specialkonsulent
> Næstformand for DTU Fysik LSU
>
> DTU Physics
>
>
>
>
>
> Technical University of Denmark
>
>
>
>
>
>
> Department of Physics
> Fysikvej
> Building 307
> DK-2800 Kongens Lyngby
> Direct +45 2125 4612
> Mobil +45 2125 4612
> Fax +45 4593 2399
> pkwi at fysik.dtu.dk <mailto:pkwi at fysik.dtu.dk>
>

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