Compiling module com.sem.Sem10
   Finding entry point classes
      [ERROR] Unable to find type 'com.sem.client.Sem10'
         [ERROR] Hint: Previous compiler errors may have made this type unavailable
         [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly

My package structure is

• com.sem
• com.sem.client
• com.sem.schema

• com.sem.server

  inherits name='com.google.gwt.user.User'
  inherits name='com.google.gwt.user.theme.standard.Standard'
  inherits name='com.google.gwt.maps.GoogleMaps' script src="http://maps.google.com/maps?gwt=1&file=api&amp....
  entry-point class='com.sem.client.Sem10'
  source path='com.sem.schema'

I have googled this thing for quite a while and could not find a solution...? any help appreciated