C++ vectors Doesnt recognize [i] INSPITE of the code being EXACTLY IDENTICAL to video tutorial [closed]

be considerate, this is my first post; first foray into C++!

This is the exact frame where I used the code from this video: https://youtu.be/Cq1h1KPoGBU?t=340

this is what I wrote down:

vector<int>         myVector;
             myVector.push_back(3);
    std::cout << " Vector:  ";
                
         for (unsigned int i = 0; i < myVector.size(); i++);
     {std::cout << myVector[i] << "    ";  }
                     //(this "[i]" claims to be undefined by C++)//
     std::cout << "enter variables" << endl;

C++ says that "i" is undefined at the italicized line (where I have an arrow pointed at the concerned line)

Yes, I included Please help!