error C2582: 'operator =' function is unavailable in 'EDIN::Neuron'

[ausairman]

I have a class called "Neuron" for which I do not have a copy constructor, as I don't want to copy it. However, when I try to compile my code I get this long pile of errors from VS2012:

1>c:\program files (x86)\microsoft visual studio 11.0\vc\include\xutility(2466): error C2582: 'operator =' function is unavailable in 'EDIN::Neuron'
1>          c:\program files (x86)\microsoft visual studio 11.0\vc\include\xutility(2487) : see reference to function template instantiation '_OutIt std::_Move<_InIt,_OutIt>(_InIt,_InIt,_OutIt,std::_Nonscalar_ptr_iterator_tag)' being compiled
1>          with
1>          [
1>              _OutIt=EDIN::Neuron *,
1>              _InIt=EDIN::Neuron *
1>          ]
1>          c:\program files (x86)\microsoft visual studio 11.0\vc\include\vector(1397) : see reference to function template instantiation '_OutIt std::_Move<EDIN::Neuron*,EDIN::Neuron*>(_InIt,_InIt,_OutIt)' being compiled
1>          with
1>          [
1>              _OutIt=EDIN::Neuron *,
1>              _InIt=EDIN::Neuron *
1>          ]
1>          c:\program files (x86)\microsoft visual studio 11.0\vc\include\vector(1381) : while compiling class template member function 'std::_Vector_iterator<_Myvec> std::vector<_Ty>::erase(std::_Vector_const_iterator<_Myvec>,std::_Vector_const_iterator<_Myvec>)'
1>          with
1>          [
1>              _Myvec=std::_Vector_val<std::_Simple_types<EDIN::Neuron>>,
1>              _Ty=EDIN::Neuron
1>          ]
1>          c:\program files (x86)\microsoft visual studio 11.0\vc\include\vector(1061) : see reference to function template instantiation 'std::_Vector_iterator<_Myvec> std::vector<_Ty>::erase(std::_Vector_const_iterator<_Myvec>,std::_Vector_const_iterator<_Myvec>)' being compiled
1>          with
1>          [
1>              _Myvec=std::_Vector_val<std::_Simple_types<EDIN::Neuron>>,
1>              _Ty=EDIN::Neuron
1>          ]
1>          c:\users\usr\google drive\code\edin\class_brain.h(14) : see reference to class template instantiation 'std::vector<_Ty>' being compiled
1>          with
1>          [
1>              _Ty=EDIN::Neuron
1>          ]

class_brain.h looks like this (I've trimmed it to show where the error occurs:

class Brain
{
public:
	Brain(std::vector<Codon> const&); // construct the brain from a brain codon sequence (ostensibly from a brain gene)

//  ...some methods go here...
private:
	std::vector<Neuron> neuron_sequence;// ERROR
};

Why is the header causing this error when I don't want to copy anything, and even if I was doing it inadvertently surely there's no copying going on in the declaration of a vector?

[vlad from moscow]

Class EDIN::Neuron has no an acceptable copy assignment operator that is required for member function erase of class std::vector<Synapse>.

[ausairman]

Sorry there was a mistake (the code snippet was from the wrong class). It's been corrected.

[ausairman]

But I don't make any calls to neuron_sequence.erase() anywhere in my program...

[ausairman]

I make a call to resize(), could that be it? If so, why?

[vlad from moscow]

Member function resize calls member function erase if the new size is less than the current size of the vector.