1  Illegal character.
  3  Illegal keyword.
  4  Use the format CODE=dddd or TRAIL=dddd.
  5  This size must not exceed 64K.
 10  Illegal character.
 11  Character constants should be terminated by a '
 12  The comment is not terminated by */
 14  The name is too long. (max. 250 characters)
 15  The textstring is too long. (max. 250 characters)
 16  The textstring should be terminated with a " in the same line.
 17  Real constant is out of range.
 18  A hex digit is expected after a dollar sign.
100  Undeclared domain (or mis-spelling).
102  Standard domains must not be declared.
103  This domain was declared previously.
104  Syntax error:    =   or  ,  expected.
105  Name expected (either a domain or a functor).
106  Alternatives in a list declaration are illegal.
107  This functor has already been used in the domain declaration.
108  Functor name expected.
109  Domain name expected.
110  Syntax error in domain declaration.  )  or  ,  expected.
111  WARNING: Domain used as a functor. (F10=Ok, Esc=Abort).
112  WARNING: Domain declaration with a single functor. (F10=Ok, Esc=Abort).
200  Illegal start of domain declaration.
201  This name is reserved for a standard predicate. 
202  This predicate is already declared.
204  Domain name  or  )  expected.
205  Undeclared domain or mis-spelling.
206  Too many parameters used in this predicate.
208  Syntax error in predicate declaration.  )  or  , expected.
209  Illegal number of parameters.
210  Only one database predicate declaration is allowed.
211  This predicate is declared as a database predicate.
220  Syntax error in declaration of global predicates: "-" expected.
221  Syntax error. "(" expected.
222  Syntax error in flowpattern. "i" or "o" expected
223  Flowpattern has the wrong length.
226  Syntax error. "predicates" or "domains" expected.
227  Project name expected.
228  At most one internal goal may be specified.
229  The include file does not exist.
230  Include files may not be used recursively. This file is already included.
231  Too many include files. The maximum is 10.
232  The include file is too big.
233  "database" declarations must precede "predicates".
234  Global predicates must be declared first.
235  The FILE domain can not be a local domain.
400  Syntax error. (Illegal start of predicate declaration).
401  No clauses for this predicate.
402  Syntax error.  AND    ,   or   .  expected.
403  Predicate name expected.
404  Undeclared predicate or mis-spelling.
405  (  expected.
406  )  or  ,  expected.
407  Illegal number of parameters: refer to declaration.
408  This sign should be followed by a number.
409  Syntax error -  this token is misplaced.
410  Variable expected.
411   ,  expected.
412  Syntax error.
413  Syntax error.  ,   |  or ]  expected.
414  Number or variable expected.
415  Clauses for the same predicate should be grouped.
416  Comparison operator expected i.e. one of  <   <=   >=   ><   <>. 
417  Text after . is prohibited here.
418  Unexpected end of text.
419  Syntax error in clause body.
420  WARNING: The variable is only used once. ( F10=Ok, Esc=abort ).
421  The parameter is missing.
422  .   :-   or   IF   expected.
423  ,   or    )    expected.
424  This facility is not implemented in this version.
425  A list should be terminated by a  ]
426  Initializing a "database" is not allowed in a submodule.
427  To generate an object module the program must contain a goal.
428  The free variable in findall can only be used inside findall.
429  The free variable in findall does not occur in the predicate.
450  Syntax error.
600  Too many domain names.
601  Too many alternatives in the domain declaration.
602  Too many predicate names.
603  Too many parameters in this clause.
604  Too many literals in this clause.
605  Too many clauses.
606  Too many arguments.
607  Too many domain names on the left hand side of a domain declaration.
608  Too many database predicates.
610  Code array too small: use code=size to get more space.
611  Trail array too small: use trail=size to get more space.
612  Overflow: too many structures in clause.
614  Object module too big. (split into smaller modules ).
701  An internal system error has occurred. Please contact your dealer.
1000  The parameters in makewindow are illegal.
1001  The cursor values are illegal.
1002  Stack overflow. Re-configure with Setup if necessary.
1003  Heap overflow. Not enough memory or an endless loop.
1004  Arithmetic overflow.
1005  The window referred to is unknown.
1006  There is not enough room in the editor for the text.
1007  Heap overflow. Not enough memory or an endless loop.
1008  Code overflow. Use code=size to get more space.
1009  Trail overflow. Use trail=size to get more space.
1010  Attempt to open a previously opened file.
1011  Attempt to re-assign input device to a unopened file.
1012  Attempt to re-assign output device to a unopened file.
1013  'system' call tries to execute a program which is too big or resident.
1014  Division by zero.
1015  Illegal window number.
1016  Maximun number of windows exceeded.
1018  The file isn't open.
1019  Illegal file mode. (Should be the range 0-1).
1020  Free variables are not allowed here.
1021  Negative values or Zero are not allowed as parameter to LOG and LN.
1022  Negative values are not allowed as parameter to SQRT.
1023  Overflow in real operation.
2000  Not enough storage space for the text.
2001  Can't execute a write operation.
2002  Impossible to open : 
2003  Impossible to erase : 
2004  Illegal disk : 
2005  >>> Text buffer full <<<
2006  Can't execute a read operation.
2200  Type error.
2201  Free variable in expression.
2204  The variable will never become bound at this occurance.
2205  Type error: Illegal variable type for this position.
2206  Type error: The functor does not belong to the domain.
2207  Type error: The compound object has the wrong number of arguments.
2208  Expressions may not contain objects of this type.
2209  Comparisons may only be made between standard types.
2210  Objects from these domains cannot be compared.
2211  There is no corresponding list domain.
2212  Type error: This parameter can't handle compound objects.
2213  Type error: This argument can't be a real.
3001  Loop in the flow analysis. Don't use a compound flowpattern here.
3002  WARNING: Composite flowpattern. (F10=ok, Esc=abort)
3003  This flowpattern doesn't exist for the standard predicate.
3004  Free variable in NOT.
3005  Free variables are not allowed here.
3006  The last variable in FINDALL must be free.
3007  Free variable in expression.
3008  WARNING: The variable is not bound in this clause. (F10=ok, Esc=abort)
3009  WARNING: Two free variables in expression. (F10=ok, Esc=abort)
3010  WARNING: Variable used twice with output flowpattern.(F10=ok, Esc=abort)
3011  WARNING: this will create a free variable.  ( F10=Ok, Esc=abort ).
3012  The variable is not bound in this clause. ( Declare reference domain )
3013  Two free variables in expression. ( Declare reference domain )
3014  Variable used twice with output flowpattern. ( Declare reference domain )
3015  This will create a free variable. ( Declare reference domain )
3016  Occur check: A variabel can not contain itself.
4001  WARNING: non deterministic clause. ( F10=Ok, Esc=abort ).
4002  WARNING: non deterministic predicate. ( F10=Ok, Esc=abort ).
5001  Error in reading symbol table.
5003  Error in writing symbol table.
5103  Use the graphics predicate to initialize the screen.
5107  Illegal screen mode. (Should be in range 1-5).