Filter custom message from Visual Studio 2015 output window

Question

At some point in the last couple of months, a lot of message along the lines of

Event 7 was called with 5 argument(s) , but it is defined with 6 paramenter(s).
Event 10 was called with 5 argument(s) , but it is defined with 6 paramenter(s).
Event 10 was called with 5 argument(s) , but it is defined with 6 paramenter(s).

started spamming my Visual Studio output window making it hard to find actual trace and debug messages. Where are these messages coming from, and how do I disable them?

To try to solve this problem, I have tried several things.

• Most of the answers point to configuring the checkboxes in the output window. If I uncheck "Program Output" the problem messages go away, but so do the messages I want to keep.
• I tried creating a custom TraceListener and set a breakpoint in the Write and WriteLine methods in the hopes that the call stack would tell me where the messages were being generated from. I discovered that these messages are not coming from the typical Diagnotics.Debug or Diagnotics.Trace methods.
• I tried redirecting the console via Console.SetOut() to a custom TextWriter that I could set breakpoints within. Again, I could not find anything.

Any help would be appreciated.

Answer 1

As @Sinatr helpfully mentioned in his comment, this can be caused by several different system configurations which I did not find information on during my initial search. In particular, more information can be found at the following links:

• Stackify
• Azure
• Rebus

In my situation, the culprit appears to be the combination of Application Insights and Stackify Prefix as documented in the StackOverflow question linked above.