> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/rdm/knowledge-base/troubleshooting-articles/key-not-present-in-the-dictionary.md).

# Key not present in the dictionary

After upgrading, Remote Desktop Manager gives the following error message: The given key was not present in the dictionary.

### Solution

This is a Microsoft bug, but here is a workaround:

1. In Remote Desktop Manager, go to ***File – Workspaces***.
2. Select your workspace.
3. Click ***Edit - Advanced - More Settings***.
4. In the ***Failover Partner Value*** field, type one or more space.
5. Click ***OK***.


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