# Cannot load RTSTRUCT file
**URL:** https://discourse.slicer.org/t/cannot-load-rtstruct-file/35593
**Category:** Support
**Tags:** slicerrt
**Created:** [April 18, 2024, 11:35am UTC](https://discourse.slicer.org/t/cannot-load-rtstruct-file/35593 "2024-04-18T11:35:55Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Freja](https://discourse.slicer.org/u/Freja)
#### Post date: [April 18, 2024, 11:35am UTC](https://discourse.slicer.org/t/cannot-load-rtstruct-file/35593/1 "2024-04-18T11:35:55Z")
Operating system: MacOS
Slicer version: 5.6.2
Hello
I have a problem with loading RTSTRUCT files (RS.dcm) in 3Dslicer. The data is imported without any error massages, and I can see the files in the “DICOM database” window. But when I press load nothing happens. I do not get any error massage but I do not see the files in the “Loaded data” window (se attached screenshot). CT images and RD.dcm fils loads correctly.
I have tried to re-instal RTSlicer. I have also tried different structure-sets, including DICOM-files downloaded from [https://github.com/SlicerRt/SlicerRtData](https://github.com/SlicerRt/SlicerRtData)
I would be very happy for some help!
Thanks in advance
---
### Author:  [@cpinter](https://discourse.slicer.org/u/cpinter)
#### Post date: [April 18, 2024, 7:03pm UTC](https://discourse.slicer.org/t/cannot-load-rtstruct-file/35593/2 "2024-04-18T19:03:34Z")
Please open the Python console using this button
and copy-paste here the red text you find.
---
### Author:  [@Freja](https://discourse.slicer.org/u/Freja)
#### Post date: [April 19, 2024, 7:35am UTC](https://discourse.slicer.org/t/cannot-load-rtstruct-file/35593/3 "2024-04-19T07:35:19Z")
Thank you for your help! Opening the Python console made me realize I had problems with installation and that my problem was the same as in this thread: [Failure to load RTSTRUCT dicom file](https://discourse.slicer.org/t/failure-to-load-rtstruct-dicom-file/33504)
I have now also **solved it by installing Slicer 5.2.2** instead of Slicer 5.6.2.
There was alot of red massages when I opend the console so I will not paste all of them here, but for documentation, some of the error massages I got was:
**When opening slicer after installation:**
[Qt] Populating font family aliases took 190 ms. Replace uses of missing font family “.AppleSystemUIFont” with one that exists to avoid this cost.
**After restarting slicer after slicerRT installation:**
Cannot load library /Applications/Slicer.app/Contents/Extensions-32448/SlicerRT/lib/Slicer-5.6/qt-loadable-modules/libqSlicerBeamsModule.dylib: (dlopen(/Applications/Slicer.app/Contents/Extensions-32448/SlicerRT/lib/Slicer-5.6/qt-loadable-modules/libqSlicerBeamsModule.dylib, 0x0085): Library not loaded: @rpath/libomp.dylib
---
### Author:  [@cpinter](https://discourse.slicer.org/u/cpinter)
#### Post date: [April 19, 2024, 9:45am UTC](https://discourse.slicer.org/t/cannot-load-rtstruct-file/35593/4 "2024-04-19T09:45:31Z")
Ah yes I just see you’re on Mac. That’s right, new Slicer versions do not have SlicerRT on Mac.
>
>
> As discussed in this thread https://discourse.slicer.org/t/failure-to-load-rtstr…uct-dicom-file/33504/5, it has been failing at least since Slicer 5.6.1.
>
> \`\`\`
> Qt\] Error(s):
> \[Qt\] Cannot load library /Applications/Slicer-5.7.0-20240306.app/Contents/Extensions-32750/SlicerRT/lib/Slicer-5.7/qt-loadable-modules/libqSlicerBeamsModule.dylib: (dlopen(/Applications/Slicer-5.7.0-20240306.app/Contents/Extensions-32750/SlicerRT/lib/Slicer-5.7/qt-loadable-modules/libqSlicerBeamsModule.dylib, 0x0085): Library not loaded: @rpath/libomp.dylib
> \[Qt\] Referenced from: \<8CC410E5-7FE3-33F6-BC6E-A68391968FE8\> /Applications/Slicer-5.7.0-20240306.app/Contents/Extensions-32750/SlicerRT/lib/Slicer-5.7/qt-loadable-modules/libvtkSlicerBeamsModuleMRML.dylib
> \[Qt\] Reason: tried: '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/QuantitativeReporting/lib/Slicer-5.7/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/SlicerDevelopmentToolbox/lib/Slicer-5.7/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/IDCBrowser/lib/Slicer-5.7/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/DCMQI/lib/Slicer-5.7/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/DCMQI/lib/Slicer-5.7/cli-modules/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/PETDICOMExtension/lib/Slicer-5.7/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/PETDICOMExtension/lib/Slicer-5.7/cli-modules/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/SlicerRT/lib/Slicer-5.7/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/SlicerRT/lib/Slicer-5.7/cli-modules/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../Extensions-32750/SlicerRT/lib/Slicer-5.7/qt-loadable-modules/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../bin/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../lib/Slicer-5.7/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../lib/Slicer-5.7/cli-modules/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../lib/Slicer-5.7/qt-loadable-modules/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../../lib/Slicer-5.7/qt-loadable-modules/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../lib/Python/lib/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../lib/Python/lib/python3.9/site-packages/numpy/core/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/bin/../lib/Python/lib/python3.9/site-packages/numpy/lib/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/../lib/Slicer-5.7/qt-loadable-modules/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/Users/svc-dashboard/D/Support/clang+llvm-14.0.6-x86\_64-apple-darwin/lib/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/Support/clang+llvm-14.0.6-x86\_64-apple-darwin/lib/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/qRestAPI-build/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/Frameworks/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/Frameworks/QtCore.framework/Versions/5/Frameworks/libomp.dylib' (no such file), '/Applications/Slicer-5.7.0-20240306.app/Contents/MacOS/../libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/CTK-build/CMakeExternals/Install/lib/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/CTK-build/CMakeExternals/Install/lib/libomp.dylib' (no such file), '/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Users/svc-dashboard/D/P/A/teem-build/bin/libomp.dylib' (no such file), '/usr/local/lib/libomp.dylib' (no such file), '/usr/lib/libomp.dylib' (no such file, not in dyld cache))
> \`\`\`