> 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/de/knowledge-base/troubleshooting-articles/adalexception-error.md).

# AdalException-Fehler

Wenn ***Integrated Security*** als Authentifizierungsmethode verwendet wird, gibt Remote Desktop Manager einen Fehler zurück, der mit folgendem Text beginnt:

AggregateException - One or more errors occurred, gefolgt von einem AdalException-Fehler.

### Lösung

Sie müssen eine Bibliothek aus dem Microsoft Download Center installieren.

{% hint style="info" %}
Bitte beachten Sie, dass Sie sowohl das x64- als auch das x86-Bit-Paket installieren müssen.
{% endhint %}


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