error .netModule not being present when build AX7 Project

Today, an error occured when i try to build my AX7 Project.

the solution is mentioned in the error, perform “full build” on the model.  , the build model menu located in “Dynamics AX” -> Build Models

and select the model that causing the error, then click build

reference :
https://devserra.wordpress.com/2016/02/18/perform-full-build-on-ax7/