java - import encog examples into eclipse -

i trying import encog example eclipse. encog java library implement neural network , machine learning algorithm keep getting error:

description resource    path    location    type project 'encog-examples' missing required java project: 'encog-java-core'    encog-examples      build path  build path problem 

any suggestion highly appreciated in advance

i solve right click on project build path configure build path project delete encog-java-core , problem solved