This looks like you are using an old version of Rebex libaries that did not support .NET 5.0 yet.
To resolve the issue, please upgrade to 2020 R5.0 or later.
This looks like you are using an old version of Rebex libaries that did not support .NET 5.0 yet.
To resolve the issue, please upgrade to 2020 R5.0 or later.