How can I eliminate false "connection string format is not valid" messages from SSIS log? I have a project that uses the SSIS catalog with project-level connection managers. The connection managers' connection strings are overridden at the server using a project parameters file, to enable easily repointing the whole project to different data sources by setting different connection strings.

Here's the issue:


It works. No real connection problems or failures. 
It bloats the log
    tables horribly in the catalog because upon each package execution I
    get:


  120    30  Error: The connection string format is not valid. It must 
  consist of one or more components of the form X=Y, separated by semicolons.
  This error occurs when a connection string with zero components is set on 
  database connection manager.



For every connection manager, in every package. I think this has to be a false error that gets triggered when the connection string is overridden with the (correct) values in the param file.

Is there something wrong here? Some way to suppress those messages?
If you use the Excel connection manager for example, you should set the ExcelFilePath property as an Expression instead of the ConnectionString !