When the debugging session cannot begin, the debugger will display an error message at invocation. This indicates that a filename
               required by CodeWatch is an error because one or more of the following is true: 
            
            
            
               
               - It does not exist or is not in the current directory. 
 
               
               - The program file specified to be debugged is not an executable file. 
 
               
               - None of the program modules in the program file was generated from a compilation using the -deb option. 
 
               
               - The necessary debugger information files cannot be found in any of the specified or default directories.