title: The mapping of CLR type to EDM type is ambiguous with EF 6 & 5?
body: <p>Please any one can help me to fix this error?</p>
  <blockquote>
  <p>Schema specified is not valid. Errors:</p>
  <p>The mapping of CLR type to EDM type is ambiguous because multiple CLR types match the EDM type 'City_DAL'. Previously found CLR type 'CeossDAL.City_DAL', newly found CLR type 'CeossBLL.City_DAL'.</p>
  </blockquote>
  <p>The main problem that I have DAL and this contains the EF and BLL and this contains the same classes of the DAL but differ in the namespace and this is what cause the problem</p>
  <p>I can't know how to get rid of these problem, can you please help me?</p>
  <p>Also I will be appreciated if some one give me sample to use n-tier architecture with EF</p>
  <p>Thank you</p>