# Opening extension manager makes Slicer crash on Linux

**URL:** <https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589>\
**Category:** Support\
**Created:** [July 15, 2019, 1:27pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589 "2019-07-15T13:27:35Z")\
**Posts on this page:** 8\
**Page:** 2

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [July 23, 2019, 10:20am UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589/21 "2019-07-23T10:20:54Z")

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@tbillah Use the method to get to the slicerappstore as described in this linked post:

> [@Extension app store not accessible (http://slicer.kitware.com/midas3/slicerappstore)](https://discourse.slicer.org/t/extension-app-store-not-accessible-http-slicer-kitware-com-midas3-slicerappstore/7550/2):
>
> Short answer: Use this link and enter relevant information. See [http://slicer.kitware.com/midas3/slicerappstore/?os=win&arch=amd64&revision=&search=&layout=layout](http://slicer.kitware.com/midas3/slicerappstore/?os=win&arch=amd64&revision=&search=&layout=layout) Long answer: The landing page is trying to find the most recent Slicer revision … but this is not done efficiently. We have plan to modernize the infrastructure and address issue like the one you reported. See [https://www.slicer.org/wiki/Documentation/Labs/ExtensionsServer](https://www.slicer.org/wiki/Documentation/Labs/ExtensionsServer)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 23, 2019, 12:41pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589/22 "2019-07-23T12:41:35Z")

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The [Slicer appstore site](http://slicer.kitware.com/midas3/slicerappstore) is indeed very slow to load (if it loads at all).

@jcfr @Sam_Horvath could you please have a look at the server? Thanks!

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [July 23, 2019, 12:50pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589/23 "2019-07-23T12:50:13Z")

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It’s very fast to load for me when you prepopulate the search fields. Here’s a link when searching Windows/x64/revision 28257 (Slicer.4.10.2)  
[http://slicer.kitware.com/midas3/slicerappstore/?os=win&arch=amd64&revision=28257&category=&search=&layout=layout](http://slicer.kitware.com/midas3/slicerappstore/?os=win&arch=amd64&revision=28257&category=&search=&layout=layout)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 23, 2019, 1:16pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589/24 "2019-07-23T13:16:22Z")

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Thank you, I confirm that pre-populating the fields make it load immediately. Probably auto-detection of latest version is slow because many preview release files piled up. I guess cleaning up older preview release files or switching to Girder will address this.

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**Author:** ![tbillah](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/tbillah/32/4139_2.png) [@tbillah](https://discourse.slicer.org/u/tbillah)\
**Post date:** [July 23, 2019, 2:14pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589/25 "2019-07-23T14:14:42Z")

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@jamesobutler, I used the link from @jcfr’s post:

[http://slicer.kitware.com/midas3/slicerappstore/?os=win&arch=amd64&revision=&search=&layout=layout](http://slicer.kitware.com/midas3/slicerappstore/?os=win&arch=amd64&revision=&search=&layout=layout)

Plugged in Linux, 64 bit, 28257, it’s still taking forever.

Even tried clicking `Diffusion`, `Process` etc on the left, didn’t help either. This is opposite to what @lassoan confirmed.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 23, 2019, 4:22pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589/26 "2019-07-23T16:22:47Z")

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> [@tbillah](#):
>
> Plugged in Linux, 64 bit, 28257, it’s still taking forever.

For me, this page loads immediately:  
[http://slicer.kitware.com/midas3/slicerappstore/?os=linux&arch=amd64&revision=28257&category=&search=&layout=layout](http://slicer.kitware.com/midas3/slicerappstore/?os=linux&arch=amd64&revision=28257&category=&search=&layout=layout)

For Preview Releases, extensions may not be built for every platform for every revision, because there is only one build per night and if there is any error then there will be no extensions for that night. You can see on the [dashboard](http://slicer.cdash.org/index.php?project=SlicerPreview) what is built each night and any build and test warnings and errors.

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**Author:** ![PaoloZaffino](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/paolozaffino/32/81052_2.png) [@PaoloZaffino](https://discourse.slicer.org/u/PaoloZaffino)\
**Post date:** [October 1, 2019, 5:02pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589/27 "2019-10-01T17:02:36Z")

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Hi all,  
I have still problem with extension manager and data store too.  
If I try to open a new windows, it crashes.

I’m using Arch Linux and Slicer 4.11.0-2019-09-30.

Let me know if I can provide further information.  
Thanks a lot!

Paolo

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**Author:** ![PaoloZaffino](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/paolozaffino/32/81052_2.png) [@PaoloZaffino](https://discourse.slicer.org/u/PaoloZaffino)\
**Post date:** [October 1, 2019, 5:08pm UTC](https://discourse.slicer.org/t/opening-extension-manager-makes-slicer-crash-on-linux/7589/28 "2019-10-01T17:08:56Z")

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Sorry, my fault!  
I got that error if I use it via X2go, if I use the “real” desktop it works without problem.

Sorry for the noise!

Paolo

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