diff --git a/lib/genevalidator/exceptions.rb b/lib/genevalidator/exceptions.rb
index d590f999..8f268e40 100644
--- a/lib/genevalidator/exceptions.rb
+++ b/lib/genevalidator/exceptions.rb
@@ -1,12 +1,4 @@
 module GeneValidator
-  # Exception raised when BLAST path is not added to the CLASSPATH
-  class ClasspathError < RuntimeError
-  end
-
-  # Exception raised when an unexisting file is accessed
-  class FileNotFoundException < RuntimeError
-  end
-
   # Exception raised when blast does not find any hit
   class QueryError < RuntimeError
   end
@@ -67,20 +59,8 @@ class BLASTDBError < RuntimeError
   class NotEnoughEvidence < RuntimeError
   end
 
-  # Exception raised when the are alias duplications
-  class NoPIdentError < RuntimeError
-  end
-
-  # Exception raised when the tabular format does not correspond to the tabular
-  #   argument
-  class InconsistentTabularFormat < RuntimeError
-  end
-
   # Exception raised when there are more than one reading frame among the hits
   #   of one prediction
   class ReadingFrameError < RuntimeError
   end
-
-  class OtherError < RuntimeError
-  end
 end