https://login.veeam.com/en/oauth?client_id=nXojRrypJ8&redirect_uri=https%3A%2F%2Fwww.veeam.com%2Fservices%2Fauthentication%2Fredirect_url&response_type=code&scope=profile&state=eyJmaW5hbFJlZGlyZWN0TG9jYXRpb24iOiJodHRwczovL3d3dy52ZWVhbS5jb20va2IxMjg4IiwiaGFzaCI6IjQ5ZjJmNjk2LTZlZDYtNGEwMi1hMTgxLTcwMDFkNjBjMDBlYSJ9
1-800-691-1991 | 9am - 8pm ET
EN

Return argument has an invalid type

Challenge

Veeam Backup Enterprise Manager fails to collect data from a Veeam Backup server with the following error:

Return argument has an invalid type.

The following error can be seen in VeeamBES.log:

[timestamp] Info     Reporting data were successfully collected from the server [server.local]

[timestamp] Error    Interrupting collect session. Return argument has an invalid type.

[timestamp] Error    Unable to collect data from Veeam Backup Server xxx.xxx.xx.x

[timestamp] Error    System.InvalidCastException: Return argument has an invalid type.

Cause

The version of Veeam Backup Enterprise Manager differs from the version of Veeam Backup & Replication.

Solution

Make sure that Veeam Backup Enterprise Manager and Veeam Backup server have the same version. Veeam Backup Enterprise Manager can only collect data from backup servers of the same version.

KB ID:
1288
Product:
Veeam Backup & Replication
Version:
5.x, 6.x
Published:
2011-10-07
Last Modified:
2020-08-13
Please rate how helpful this article was to you:
5 out of 5 based on 1 ratings
Thank you for helping us improve!
An error occurred during voting. Please try again later.

Couldn't find what you were looking for?

Below you can submit an idea for a new knowledge base article.
Report a typo on this page:

Please select a spelling error or a typo on this page with your mouse and press CTRL + Enter to report this mistake to us. Thank you!

Spelling error in text

Knowledge base content request
By submitting, you agree that your personal data will be managed by Veeam in accordance with the Privacy Policy.

ty icon

Thank you!

We have received your request and our team will reach out to you shortly.

OK

error icon

Oops! Something went wrong.

Please go back try again later.