E2435 Too many template parameter sets were specified (C++)
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If a member template is being defined outside of its parent class, and too many template parameter sets are declared, this error will result. For example:
template<class T>
class foo
{
template<class U>
void method(U a);
};
template<class T> template<class U> template<class V>
void foo<T>::method(U a);// error: too many parameter sets!