dl-breadcrumbs__homedl-breadcrumb-item__separatorConfiguration and programmingdl-breadcrumb-item__separatorProgramming with CODESYSdl-breadcrumb-item__separator...dl-breadcrumb-item__separatorCODESYS Development Systemdl-breadcrumb-item__separatorReference, Programmingdl-breadcrumb-item__separatorError Messages and Warningsdl-breadcrumb-item__separatorCompiler error C0145
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Compiler error C0145dl-permalink__symbolPermalink

Message: Interfaces can only be implemented by Functionblocks

Possible error cause: An attempt is made to implement an interface outside of a function block.

Error correction: Implement interfaces only in function blocks.

Example of the error:

PROGRAM PLC_PRG 
VAR
END_VAR

POU();
	
FUNCTION POU IMPLEMENTS ITF
VAR
END_VAR

--> C0145: Interfaces can only be implemented by Functionblocks