issue solved: In /usr/share/dotnet/sdk-manifests/8.0.100/workloads/ I found the following folders: drwxr-xr-x 2 root root 4096 30. Mai 09:56 8.0.300-baseline.24224.15 drwxr-xr-x 2 root root 4096 10. Jul 09:51 8.0.301-baseline.24272.10 drwxr-xr-x 2 root root 4096 14. Aug 09:25 8.0.303-baseline.24317.8 drwxr-xr-x 2 root root 4096 17. Aug 09:05 8.0.400-baseline.24375.2 drwxr-xr-x 2 root root 4096 12. Okt 08:55 8.0.401-baseline.24412.2 drwxr-xr-x 2 root root 4096 10. Okt 09:29 8.0.402-baseline.24467.1 drwxr-xr-x 2 root root 4096 17. Okt 11:42 8.0.403-baseline.24474.13 All were empty except the 8.0.403-baseline.24474.13. It seems the others were remains from previous updates. Deleting them solved the issue. Please check why the outdated folders of previous versions were not deleted during update.