C2100 Illegal Indirection error?

So this is my code..

Code:

---

vector<string> frame(const vector<string>& v){
        vector<string> ret;
        string::size_type maxlen = width(v);
        string border(maxlen + 4, '*');

        //write the top border
        ret.push_back(border);

        for(vector<string>::const_iterator i = v.begin(); i != v.end(); ++i){
                ret.push_back("* " + *v + string(maxlen - ((*v).size()), ' ') + " *");
        }


        ret.push_back(border);
       
        return ret;
}

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If I slightly modified this code so it would work with vector accessors, vector[i], it would work. However following my book I was asked to change it to use iterators. I did so, but now it is giving me an illegal indirection error. Ive tried debugging it with the little debugging skills I have but it didn't really help. What is this illegal indirection error?

You meant to say *i, not *v