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Changes for page Troubleshooting

Last modified by kindler on 2025/05/14 16:54
From version 34.1
edited by kindler
on 2021/12/15 14:55
Change comment: There is no comment for this version
To version 37.1
edited by kindler
on 2022/01/27 09:50
Change comment: There is no comment for this version

Summary

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2 +This page collects some more commonly encountered problems when using the systems via the Collaboratory.
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5 +For more information on the Collaboratory, please seee the [[documentation of the EBRAINS Collaboratory environment>>https://wiki.ebrains.eu/bin/view/Collabs/the-collaboratory/]].
6 +
1 1  == Jupyter notebook environment ("Lab") related ==
2 2  
3 3  === Error message "Error in Authenticator.pre_spawn_start: ... 401: Unauthorized" ===
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68 68  
69 69  The BrainScaleS-2 interactive examples need the BrainScaleS client software. Currently (December 2021) this software is not available from the started-by-default "Python 3" kernel in the Jupyter lab, but requires the "EBRAINS_release_...." kernel. Please choose the kernel by clicking the kernel name in the lower left hand corner of the Lab window ("Python 3" in the screenshot)
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71 -[[image:1639576461861-804.png]]
77 +[[image:1639576461861-804.png||height="42" width="456"]]
72 72  
73 73  Then select the "EBRAINS_release_..." kernel from the dialog box and run the example again.
74 74  
75 -[[image:1639576524483-695.png]]
81 +[[image:1639576524483-695.png||height="259" width="420"]]
76 76  
83 +It may be necessary to restart the newly chosen kernel via "Kernel > restart Kernel" from the menu.
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85 +[[image:1639576718553-361.png||height="125" width="518"]]
86 +
77 77  == BrainScaleS-1 specific ==
78 78  
79 79  The [[BrainScaleS external user chat>>https://chat.bioai.eu/external-users/channels/town-square]] has service announcements (e.g. when a system is down due to maintenance) and is also a good place to ask general questions.
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