CustomKeyword call CastomKeyword. it doesn't happen

1.I have massage: test FAILED because (of) Variable ‘CustomKeywords’ is not defined for test case.
2. in the TestCase this is done
3.and before the message Custom Keywords is underlined
4.how am I supposed to live with this
?


public class kw1 {
@Keyword
def execute1 (){
      CustomKeywords.'my001.kw2.execute2'(11)
}
}
public class kw2 {
@Keyword
def execute2 (int input1){
      def var1=input1
            var1 = 222
}
}