Visual Studio Debugger Breakpoint Helper

The Common Language Runtime was unable to set the breakpoint

This usually means the managed code was built without the System.Diagnostics.DebuggableAttribute attribute. In order to debug managed code, the CLR JITter has to generate tracking info. If this attribute is present, as it is on Debug builds by default, then tracking info will be created. It is also created if the program is launched by the debugger. However, if the attribute is missing (e.g. in a Release build that is not launched by the debugger) then there is no tracking information, so the debugger is unable to set breakpoints anywhere in the code. You can read more about this, and how to force tracking information to be generated here.

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