C++ Destructor not working correctly, compile error, just trying to delete a member variable with destr

Following class will be initiated with a member variable newTodayTaskString (string).

When destructing the object I like to delete the string but when compiling the project I get an error message pointing to the destructor delete line saying:

delete: std::string cannot be converted to void

Class:

class TodayTask {
private:   
    string newTodayTaskString;

public: 
    TodayTask (string t) : newTodayTaskString (t){}


    // Destr.
    ~TodayTask () {
        delete newTodayTaskString;
    }

    string getTodayTaskString () const {
        return newTodayTaskString;
    }
};

Answer

delete must be given a pointer, and can only be used to destroy objects created with new.

In this case, the object is a class member, and so will be destroyed automatically. You don't need to do anything with it in the destructor.