Changes for page Troubleshooting

Last modified by kindler on 2025/05/14 16:54
From version 40.1
edited by kindler
on 2022/08/19 15:15
Change comment: There is no comment for this version
To version 47.1
edited by kindler
on 2022/10/19 15:10
Change comment: There is no comment for this version

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4 4  (% class="wikigeneratedid" %)
5 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 6  
7 -(% class="wikigeneratedid" %)
8 8  == Temporary problems ==
9 9  
10 -=== August 2022: "504 Gateway Time-out" ===
9 +Currently none known.
11 11  
12 -The call to //client.list_resource_requests(repoInfo.nameInTheUrl)// in the batch-exmaple notebooks currently (19 August 2022) result in a "504 Gateway Time-out" error due to a problem in the back-end. As a workaround, please just skip the part by inserting a line with the content
13 -//break//
14 -before the
15 -//a=client.list_resource_requests(repoInfo.nameInTheUrl)//
16 -line in the example notebook.
17 -
18 18  == Jupyter notebook environment ("Lab") related ==
19 19  
20 20  === Error message "Error in Authenticator.pre_spawn_start: ... 401: Unauthorized" ===
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44 44  [[image:1623846323177-898.png||height="287" width="350"]]
45 45  
46 46  
40 +=== Error message: "Could not identify EBRAINS kernel " ===
41 +
42 +If your notebook shows "RuntimeError: Could not identify EBRAINS kernel (probably too old version). Please select the appropriate kernel EBRAINS_experimental_release.": Please check, whether an EBRAINS kernel has been selected as kernel for the notebook execution.  In the example screenshot below the "Python 3 (ipykernel)" has been used, as shown in the upper right hand corner of the tab with the notebook.
43 +
44 +[[image:1666184857320-440.png]]
45 +
46 +
47 +Fix: click the current kernel name to get the kernel selection dialog box and select the "EBRAINS_experimental_release" kernel (blue highlight in the screenshot shown below):
48 +
49 +[[image:image-20221019150927-1.png]]
50 +
51 +(% class="wikigeneratedid" %)
47 47  === Import error for hbp_service_client ===
48 48  
49 49  The hbp_service_client was needed for the now not-existing-any-longer Collaboratory version 1. The import line can be deleted from scripts.
50 50  
51 -
52 52  == BrainScaleS-2 specific ==
53 53  
54 54  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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103 103  
104 104  There are also some additional Python3 related changes in the brainscales_system_chain_test.py example. Please find a [[working example script>>https://lab.ch.ebrains.eu/user-redirect/lab/tree/shared/NMC%20Collab%20copy%20template/BrainScaleS/BrainScaleS_01_Chain.ipynb]] in our [[copy-template Drive>>https://wiki.ebrains.eu/bin/view/Collabs/nmc-collab-copy-template/Drive]] (for copying into users collabs).
105 105  
106 -==== ====
110 +==== ====
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