The following list explains error messages that you might receive from the debugger, with some hints about the possible causes or circumstances of the error. Messages listed without comment are self-explanatory.

Internal error.

Internal error.

Attempt to read or write to an invalid address.

The symbolics file contains a data type that the debugger does not support.

The debugger does not have access to the same text available to the compiler. The debugger just issues a warning unless the debugging information references nonexistent text, in which case it gives you this error message.

Unexpectedly encountered something other than a class name while evaluating an expression.

The command you issued cannot be performed while the program is running.

Watchpoints cannot be set in low memory or in the system heap.

Watchpoints are implemented via the memory write-protection mechanism, which operates at the page level. You cannot write-protect a page of memory containing part of the stack.

When launching a program, the debugger normally sets an implicit breakpoint at the beginning of the function named main() (in C/C++) or the main program (in Pascal). If the debugger cannot find such a routine, it just launches the program without suspending that program's execution.

Unexpectedly encountered something other than an identifier or qualified name while evaluating an expression.

Invalid character constant encountered while evaluating an expression.

Invalid string constant encountered while evaluating an expression.

Invalid token encountered while evaluating an expression.

An ill-formed string was encountered in evaluating an expression.

An invalid character constant was encountered in evaluating an expression.

C/C++ escape sequence in a string was not valid syntax.

Invalid pointer or reference expression encountered while evaluating an expression.

Invalid type encountered while evaluating an expression.

The debugger is unable to display a variable because of bad data in the symbolics file.

For example, you have attempted to assign a 20-byte string to a 10-byte string variable.

The debugger does not recognize a type name you have entered in the View As dialog box.

The debugger is unable to get a valid register value to display a register variable. For example, when looking at routines up the stack from the current routine, the debugger cannot retrieve the saved register values unless all routines below it on the stack have debugging information.

String exceeds maximum permissible length.

You have attempted to assign a value of the wrong type to a variable, such as a string to an integer variable.

Unexpectedly encountered something other than a typedef name while evaluating an expression.

The debugger cannot step execution from this point.

The debugger cannot step out from this point.

Undefined identifier encountered while evaluating an expression.

Unexpected token encountered while evaluating an expression.

An internal error that was not expected to reach the user.

A closing comment bracket is missing.

For example, if r is a Rect, *(char*)r is invalid.

Your symbolics file may have been corrupted.

Unexpectedly encountered something other than a pointer or reference operator while evaluating an expression.