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is it really SQL Server Service throwing that error? Or rather SSMS tool or something else as described here:<br />
<a href="https://social.msdn.microsoft.com/Forums/sqlserver/en-US/d27f7ec7-1048-4017-8e79-5eca7ed3a9b6/sql-server-management-studio-execution-plan-error-exception-has-been-thrown-by-the-target-of-an?forum=sqltools" rel="ugc nofollow">https://social.msdn.microsoft.com/Forums/sqlserver/en-US/d27f7ec7-1048-4017-8e79-5eca7ed3a9b6/sql-server-management-studio-execution-plan-error-exception-has-been-thrown-by-the-target-of-an?forum=sqltools</a><br />
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Can you post the Event Viewer actual error about the SQL Server assuming no confidential info will be shown?
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is it really SQL Server Service throwing that error? Or rather SSMS tool or something else as described here:
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/d27f7ec7-1048-4017-8e79-5eca7ed3a9b6/sql-server-management-studio-execution-plan-error-exception-has-been-thrown-by-the-target-of-an?forum=sqltools [https://social.msdn.microsoft.com/Forums/sqlserver/en-US/d27f7ec7-1048-4017-8e79-5eca7ed3a9b6/sql-server-management-studio-execution-plan-error-exception-has-been-thrown-by-the-target-of-an?forum=sqltools]

Can you post the Event Viewer actual error about the SQL Server assuming no confidential info will be shown?

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Not that long ago, SQL Server was running just fine, but now it doesn't. &nbsp;Every time I invoke the program, I get the following cryptic error message: &quot;Exception has been thrown by the target of an invocation,&quot; at which point, the program shuts down. &nbsp;Does anyone happen to know what this message means and what to do about it? &nbsp;Thank you, ~ Peter Ferber
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Not that long ago, SQL Server was running just fine, but now it doesn't.  Every time I invoke the program, I get the following cryptic error message: "Exception has been thrown by the target of an invocation," at which point, the program shuts down.  Does anyone happen to know what this message means and what to do about it?  Thank you, ~ Peter Ferber

Wierd error message: &quot;Exception has been thrown by the target of an invocation&quot; (???)

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.

Microsoft SQL Server

SQL (Structured Query Language) is designed to be used in conjunction with relational database products as of a means of working with sets of data. SQL consists of data definition, data manipulation, and procedural elements. Its scope includes data insert, query, update and delete, schema creation and modification, and data access control.

Wierd error message: &quot;Exception has been thrown by the target of an invocation&quot; (???)

Wierd error message: "Exception has been thrown by the target of an invocation" (???)