Informix Error -4011: Class "name" is not declared.

Reasons / Common Causes

-4011 fires when code references a class name that hasn't been declared anywhere earlier in the source module — per the official guidance, no such class has been declared to this point.

1. A misspelled class name, per the official guidance — the first named cause.
2. A missing INCLUDE for the file that declares the class, per the official guidance — the second named cause.

Solutions / Resolution

1. Check the spelling of the class name, per the official guidance.
2. Make sure all desired include files have been included, per the official guidance.

Examples

A missing include for a class definition

DEFINE o OrderClass
-- -4011: OrderClass is declared in orderclass.4gl, which wasn't INCLUDEd

Corrected

INCLUDE "orderclass.4gl"

DEFINE o OrderClass

Diagnostic Checks

1. Check the class name's spelling, and confirm the file declaring it has been INCLUDEd before this point in the module.

Related Errors / Related Topics

• -4010 — "Include file "pathname" is not found." A related compile-time error, about an INCLUDE statement itself failing, which can be the root cause of a class appearing undeclared here.

A referenced class hasn't been declared — check its spelling and whether its defining file was included.