FIX: CDC Source preview fails with "The given key was not present in the dictionary" error in SQL Server 2017

Applies to: SQL Server 2017 Developer WindowsSQL Server 2017 Enterprise WindowsSQL Server 2017 Enterprise Core Windows


Assume that you use Change Data Capture (CDC) in SQL Server 2017. After you apply the fix in KB 4038210 and try to do a preview in the CDC Source task, you may receive an error message that resembles the following:

TITLE: Microsoft Visual Studio

The given key was not present in the dictionary


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. 


This issue is fixed in the following cumulative update for SQL Server:

About cumulative updates for SQL Server:

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:


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