Failed to start project ; Exception deserializing the package "values doesn't fall within the expected range"

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Failed to start project ; Exception deserializing the package "values doesn't fall within the expected range"

I am seeing this error when I am running SSIS  (VS 2015) package with below sql in Execute SQL Task;
All I am trying to see is if the file exists in the folder. It gives me the same error even if I pass real path instead of parameter.
It runs

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