communication between two webdynpro components using component usage

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Hi All,

Can you please let me know the steps that needs to be followed for communication between two Webdynpro components.'

I am using webdynpro component usage and creating the usage on manual. Next mapping the used component interface controller to the main component.

And trying to call wdThis.wdGetusedcompinterface().usedCompmethod();

When I try to activate this code I am getting compiler errors on NWDI Activation...

[javac] symbol : method wdGetFlexInterface ()

[javac] location: interface com.deloitte.component.newhire.healthplan.wdp.IPrivateNew_Hire_HealthPlan

[javac] wdThis.wdGetFlexInterface().refreshFlexComp();

[javac] ^

[javac] Note: Some input files use or override a deprecated API.

Why is this error coming up on activation? Am I missing any steps?

Thanks,

Madhavi