Regarding Plug-in Loading Errors When Creating C++ Plug-ins on Mac.

The system was unable to recognize ~ as a valid plugin.
An error message with this content appears.

After building the sample program from the downloaded SDK, placing it in the PlugIn folder,

then modifying that program and reinstalling the PlugIn, this message appears.

The modification was simply changing a comment—a change that seems completely harmless from a programming perspective.

Could this be some kind of security measure?
How should I handle this?