Open Workbench (OWB) error: "The stream version from the server is not the same as the client's stream version"
Release : All
This can be due to mismatch of Clarity and OWB Versions
Make sure that the Clarity version matches the OWB version. Two versions might appear in OWB, such as '2.1.2 (15.6.0.320)'. The number inside the parenthesis is the one to check against Clarity.
If Clarity has been recently upgraded, then perform a clean reinstall of OWB.