As many people have said, you cant physically force your daughter to go to school as that does not solve the real problem. She will continue to not want to go to school.
You have to have lots of time and patience and get into conversation, slowly pick away what's bothering her and why she doesnt want to go to school, then ask her what would make her want to go to school, if she wont say just keep at it and dont loose your temper. It's all about time you need to get to the bottom of what's stopping her from going.