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Windows Conda install won't launch #37581

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thomashampson opened this issue Jun 20, 2024 · 4 comments · Fixed by #37588
Closed

Windows Conda install won't launch #37581

thomashampson opened this issue Jun 20, 2024 · 4 comments · Fixed by #37588
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Bug Issues and pull requests that are regressions or would be considered a bug by users (e.g. crashing) Found in Beta Issues that were found during the manual/beta/smoke testing period High Priority An issue or pull request that if not addressed is severe enough to postponse a release. ISIS Team: Core Issue and pull requests managed by the Core subteam at ISIS Windows Only Only on Windows
Milestone
Release 6.10

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@thomashampson
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thomashampson commented Jun 20, 2024 •
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Describe the bug
Conda install of mantidworkbench doesn't launch on SOME Windows machines:

qt.qpa.plugin: Could not find the Qt platform plugin "windows" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

DllOpen-[Error] Could not open library C:\Users\dsc49661\AppData\Local\mambaforge\envs\mantidnightlytest\Library\plugins\qt5\MantidScientificInterfacesIndirectQt5.dll: failed with error 126: The specified module could not be found.
DllOpen-[Error]
DllOpen-[Error]
qt.qpa.plugin: Could not find the Qt platform plugin "windows" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

The issue that is preventing it from launching is the qt platform plugin related error. The missing dll doesn't prevent launch.

I think the underlying cause is that qt6-main is being installed into the conda environment, which is being brought in by vtk. Since occt v7.8.1, the occt all build variant is being installed. On an older conda environment I have, the novtk is installed.

I think the solution would be to try to specify the novtk variant of occt.

To Reproduce
Install 6.10.0rc1 smoke testing candidate and try to launch with workbench

Platform/Version (please complete the following information):

  • OS: Windows
  • Mantid Version 6.10.0rc1, also nightly version 6.9.20240619.1320
@thomashampson thomashampson added High Priority An issue or pull request that if not addressed is severe enough to postponse a release. Bug Issues and pull requests that are regressions or would be considered a bug by users (e.g. crashing) ISIS Team: Core Issue and pull requests managed by the Core subteam at ISIS Windows Only Only on Windows Found in Beta Issues that were found during the manual/beta/smoke testing period labels Jun 20, 2024
@thomashampson thomashampson added this to the Release 6.10 milestone Jun 20, 2024
This was referenced Jun 20, 2024
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@thomashampson
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I think there are two separate issues here so I'll split one off.

@thomashampson
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split the dll issue into #37587

@thomashampson
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I'm not sure why this is only happening on some machines, but presumably we want to make sure that qt6-main is not installed.

@thomashampson thomashampson mentioned this issue Jun 21, 2024
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@sf1919 sf1919 linked a pull request Jun 24, 2024 that will close this issue
Pin occt to novtk build variant #37588
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Closed by #37588.

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Labels
Bug Issues and pull requests that are regressions or would be considered a bug by users (e.g. crashing) Found in Beta Issues that were found during the manual/beta/smoke testing period High Priority An issue or pull request that if not addressed is severe enough to postponse a release. ISIS Team: Core Issue and pull requests managed by the Core subteam at ISIS Windows Only Only on Windows
Projects
ISIS Core
Status: Done
Release 6.10
Status: Done
Milestone
Release 6.10
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Successfully merging a pull request may close this issue.

Pin occt to novtk build variant mantidproject/mantid
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@thomashampson