InvalidRequestContent error occurred("source" parameter is null)

[Shiratori]

I'm trying to run Power Automate Desktop with Power Automate.
I got an error like this.

    "code": "InvalidRequestContent",

    "message": "The request content was invalid and could not be deserialized. The value cannot be Null.

　Parameter:source'。"

It says that the "source" parameter is null, but I haven't created the "source" parameter.
I haven't even declared an Input variable on Power Automate Desktop.
What is the "source" parameter?
Where is it null?

[TPoszytek]

Hi,

be sure you are running the latest Power Automate Desktop version available. In case you're in doubt, download the latest one from here: https://go.microsoft.com/fwlink/?linkid=2102613. It should be: 2.2.128.20340.

Let me know if it helped you.

Best regards,

Tomasz