compile failed in struts - could not resolve import org.jboss.tools.jst.web.validation

[INFO] org.jboss.tools.struts ............................ FAILURE [13.556s]

[ERROR] Failed to execute goal org.eclipse.tycho:tycho-compiler-plugin:0.13.0:compile (default-compile) on project org.jboss.tools.struts: Compilation failure: Compilation failure:
[ERROR] /mnt/hudson_workspace/workspace/jbosstools-3.3_stable_branch.component--struts/sources/plugins/org.jboss.tools.struts/src/org/jboss/tools/struts/validation/ActionForwardCheck.java (at line 19):[-1,-1]
[ERROR] import org.jboss.tools.jst.web.validation.Check;
[ERROR] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ERROR] The import org.jboss.tools.jst.web.validation cannot be resolved