There are many skills that make a good entrepreneur and the list depends on which author you are reading at the time. But being an entrepreneur is not a skill, it is a mindset.
Entrepreneurs are those select few people that are both creative and analytical at the same time. They can see the big picture and the basic steps it will take to achieve their vision.
So, while you can learn entrepreneurial skills, you cannot learn to be an entrepreneur. But you can decide to be one.