1178: invalid local symbol number 
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  Blinker has encountered a problem while compressing the symbol table of
  a Clipper application. The most likely cause of this is corruption of
  one or more object modules or libraries.

  Recompile your program and link with VERBOSE mode enabled in order to
  determine the module causing the error.

  This can occur in a Clipper application when the Clipper 5.01 libraries
  have been renamed and the Clipper Summer '87 libraries are included
  automatically as default libraries.  In this case, use the command
  NODEFLIB.