System error dialog box

In the Classic Mac OS, from System 1 through Mac OS 9, the Macintosh Toolbox contained an error handler that, when an OS-level error was triggered, launched the built-in debugger and passed it the error. If no advanced debugger such as MACSBUG was installed, MiniBug would be triggered and would present a dialog box with a bomb icon in the upper left corner of the window, and the text "Sorry, a system error occured. ID= ". The number would be a pre-defined system error code that could be looked up in the Apple Toolbox developer documents. For some reason, even though each error has an associated number, object name and localized text description, Apple only embedded the number for most errors, even in later versions of the OS where size was not an issue.

Common Errors

 * -192 - Resource not found (usually after the file has been transferred via a file system that doesn't support resource forks)


 * 10 - Instruction not found in the 68k instruction lookup table.


 * 15 - Segment loader failed to load a part of the application code into memory

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