When I run the query in SQL I get this message box

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TITLE: Microsoft SQL Server Management Studio
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Failed to start debugger

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ADDITIONAL INFORMATION:

Data is Null. This method or property cannot be called on Null values. (System.Data)

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BUTTONS:

OK
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and when i click ok:

Unable to start program

What I have tried:

i can't figure out the issue and how to solve it

Posted 5-Jun-18 6:58am

Member 13857678

Updated 5-Jun-18 18:00pm

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Member 13812021 5-Jun-18 13:28pm

You have a record in the table that you are querying with nothing in it and it is set to NotNull. If you are going to have a null reference in a null space than you should select the default value as being (''). Then it will be blank or whitespace and should take care of the error you are getting.

CHill60 6-Jun-18 4:03am

You can also get this issue if you are running one of the Express versions (debugger probably not installed). In that instance find a different way to debug - old-school messages for example. Assuming you were actually trying to debug - if you were just trying to run the query use "Execute" (F5)

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Saman_Rezaei · Answer 1 · 2018-06-05T18:02:00

Hi, First of all check your firewall (it should be off).
Update your current SSMS or Try install new versions of SSMS.
If you are using Visual Studio, check the versions, because each SSMS version has a isolated Shell version, like: SSMS 2014 uses VS 2012. Maybe there is a conflict between SSMS/VS installed Isolated Shell.