StochasticProcessArray with quantlibXL

[Paolo Tenconi]

Dear members,
I'm trying to include in quantlibXL a kind of StochasticProcessArray (as a first step to price basket options).
My idea is to create a function accepting a vector of references to cells containing each one a GeneralizedBlackScholesProcess and a correlation matrix.

I get the following error in VC++ raised into source Processes.cpp

'QuantLib::StochasticProcessArray::StochasticProcessArray(const std::vector<_Ty> &,const QuantLib::Matrix &)' : cannot convert parameter 1 from 'const std::vector<_Ty>' to 'const std::vector<_Ty> &'


Below is my code.
Could anyone give me an insight to fix the error, or if there is already a way to price basket options in qlXL?

Many thanks for any help!
Paolo



// ========================   processes.xml   ================================

    <Constructor name='qlStochasticProcessArray'>
      <libraryFunction>StochasticProcessArray</libraryFunction>
      <SupportedPlatforms>
        <SupportedPlatform name='Excel'/>
      </SupportedPlatforms>
      <ParameterList>
     
        <Parameters>
       
          <Parameter name='Processes'>
              <superType>underlyingClass</superType>
            <type>QuantLib::GeneralizedBlackScholesProcess</type>
            <tensorRank>vector</tensorRank>
            <description>Set of Stochastic Processes</description>
          </Parameter>
         
          <Parameter name='CorrelMatrix'>
            <type>QuantLib::Matrix</type>
            <tensorRank>matrix</tensorRank>
            <description>Correlation matrix</description>
          </Parameter>
         

        </Parameters>
      </ParameterList>
    </Constructor>

// ========================   Processes.hpp   ================================
 
      class StochasticProcessArray : public ObjectHandler::LibraryObject<QuantLib::StochasticProcessArray> {
      public:
        StochasticProcessArray(
            const boost::shared_ptr<ObjectHandler::ValueObject>& properties,               
            const std::vector<boost::shared_ptr<QuantLib::GeneralizedBlackScholesProcess> >& processes,
            const QuantLib::Matrix& correlation,
            bool permanent);
    };
   


// ========================   Processes.cpp   ================================

    StochasticProcessArray::StochasticProcessArray(
        const boost::shared_ptr<ObjectHandler::ValueObject>& properties,
        const std::vector<boost::shared_ptr<QuantLib::GeneralizedBlackScholesProcess> >& processes,
        const QuantLib::Matrix& correlation,
        bool permanent)
    : ObjectHandler::LibraryObject<QuantLib::StochasticProcessArray>(properties, permanent) {
   

      //Error here
            libraryObject_ = boost::shared_ptr<QuantLib::StochasticProcessArray> (
                new QuantLib::StochasticProcessArray(
                processes,
                correlation
                ));
               
    }





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