# ExtensionWizard hangs

**URL:** <https://discourse.slicer.org/t/extensionwizard-hangs/372>\
**Category:** Development\
**Tags:** extensions-manager\
**Created:** [May 24, 2017, 2:14pm UTC](https://discourse.slicer.org/t/extensionwizard-hangs/372 "2017-05-24T14:14:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tdiprima](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/tdiprima/32/9469_2.png) [@tdiprima](https://discourse.slicer.org/u/tdiprima)\
**Post date:** [May 24, 2017, 2:14pm UTC](https://discourse.slicer.org/t/extensionwizard-hangs/372/1 "2017-05-24T14:14:58Z")

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**Operating system:** Windows 10 and Ubuntu 16  
**Slicer version:** 4 (Nightly build – for the past few weeks or so)  
**Expected behavior:** ExtensionWizard displays the extensions you can install  
Actual behavior: **ExtensionWizard hangs for quite a long time upon startup, with no log output to indicate anything wrong)**

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<div class="post-metadata">

**Author:** ![tdiprima](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/tdiprima/32/9469_2.png) [@tdiprima](https://discourse.slicer.org/u/tdiprima)\
**Post date:** [May 24, 2017, 2:16pm UTC](https://discourse.slicer.org/t/extensionwizard-hangs/372/2 "2017-05-24T14:16:26Z")

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Screenshot:

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/3/e34846bbd1e55dadcb9e6fdc48586954d785161a.png)

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<div class="post-metadata">

**Author:** ![jcfr](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jcfr/32/17825_2.png) [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Post date:** [May 24, 2017, 2:31pm UTC](https://discourse.slicer.org/t/extensionwizard-hangs/372/3 "2017-05-24T14:31:13Z")

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Thanks for the feedback. Will have a look shortly and keep you posted.

Look like the associated server is slow, any of these urls are slow to complete:

- [http://slicer.kitware.com/midas3/slicerappstore](http://slicer.kitware.com/midas3/slicerappstore)
- [http://slicer.kitware.com/midas3/slicerappstore?os=linux&arch=amd64&revision=26032&category=&search=&layout=layout](http://slicer.kitware.com/midas3/slicerappstore?os=linux&arch=amd64&revision=26032&category=&search=&layout=layout)
- [http://slicer.kitware.com/midas3/slicerappstore?os=linux&arch=amd64&revision=26032&category=&search=&layout=empty](http://slicer.kitware.com/midas3/slicerappstore?os=linux&arch=amd64&revision=26032&category=&search=&layout=empty)

This is do to a recent “feature” extracting the current nightly revision. See [https://github.com/midasplatform/slicerappstore/commit/a61ea1989b9c0267e19236a8c10a01f273ee85fd](https://github.com/midasplatform/slicerappstore/commit/a61ea1989b9c0267e19236a8c10a01f273ee85fd)