FORTRAN Reference Manual
Compile-Time Diagnostic Messages
FORTRAN Reference Manual—528615-001
F-24
Error Messages
Cause. The number of left parentheses in this statement is not equal to the number of 
right parentheses.
Recovery. Make the parentheses balance.
Cause. The program has too many common blocks in the user data segment or refers 
to too many entities in such common blocks.
Recovery. Use the EXTENDCOMMON compiler directive to reduce the number of 
pointer words that must be allocated in the primary global data area (the first 256 
words of the user data segment), or use the LARGECOMMON directive to move some 
or all the program’s common blocks to the extended data segment, because they do 
not need any pointers in the primary global area.
Cause. This program unit references too many local variables and arrays and 
LARGECOMMON common blocks, so that the required pointers do not fit into the 
primary local data area on the run-time stack.
Recovery. Simplify the program unit.
Cause. This program unit has been declared previously.
Recovery. Remove one declaration.
Cause. More than 32,767 words of object code (including executable instructions and 
read-only data such as constants and FORMAT statements) were generated for this 
program unit.
Recovery. Divide the program unit into smaller program units.
PARENTHESIS MISMATCH
PRIMARY GLOBAL AREA OVERFLOW
PRIMARY LOCAL AREA OVERFLOW
PROCEDURE ALREADY DECLARED
PROGRAM UNIT TOO LARGE ** name










