Made an implicit include explicit

castor/tape/net/net.cpp

@@ -23,6 +23,7 @@
  * @author Nicola.Bessone@cern.ch Steven.Murray@cern.ch
  *****************************************************************************/
 
+#include "castor/exception/Exception.hpp"
 #include "castor/exception/Internal.hpp"
 #include "castor/exception/InvalidArgument.hpp"
 #include "castor/tape/aggregator/Constants.hpp"