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Recently have upgraded the Sitecore instance from 9.3 to 10.3 and post upgrade dashboard icons are not loading. When I inspect the broken image and the image loading from temp folder(https://instance/temp/iconcache/launchpadicons/48x48/xanalytics.png)

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When I check the Network tab all the images are showing 500 exceptions.

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To resolve this i did clean, link database and did complete indexing also. If anyone faced a similar issue please do let me know.

If I add -/ before temp folder image loading fine(https://instance/-/temp/iconcache/launchpadicons/48x48/xanalytics.png)

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  • After migration have you rebuilt indexes? Jul 21, 2023 at 7:18
  • If the issue still persists after applying the below suggestion, I would copy the images from the Vanilla temp folder and replace them in the upgraded temp folder and try. Jul 21, 2023 at 8:06

2 Answers 2

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Ensure the Nuget packge reference SharpZipLib library version is compatible with Sitecore 10.3. The OOTB(vanilla) Sitecore 10.3 uses ICSharpCode.SharpZipLib.dll with version 1.3.2.

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Reference: Sitecore Launchpad icons missing

Hope it helps!

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  • Sumit, I checked this article before publishing this question. ICSharpCode.SharpZipLib.dll version is 1.3.2 only in my current Sitecore 10.3 version. I am suspecting something else causing this issue.
    – Reddy
    Jul 21, 2023 at 5:39
  • Also check the /temp folder permission, sometime permission cause the issue. Check the <customHandlers> in Sitecore.config value of trigger="-/temp/" Jul 21, 2023 at 5:56
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You should also verify the following handler in your web.config file.

<add verb="*" path="sitecore_icon.ashx" type="Sitecore.Resources.IconRequestHandler, Sitecore.Kernel" name="Sitecore.IconRequestHandler" />

Also you can try running the Clean up databases from the Control Panel.

Hope this will help to resolve your issue.

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