QEMU Command Not Working

[TMoney0411]

I downloaded QEMU and MSYS2 but, when I did this command on my powershell: qemu-system-arm -M vexpress-a15 -cpu cortex-a15 -m 2048 -hda my_arm_vm.qcow2 -cdrom "C:\Users\trace\Downloads\TinyCore-current.iso" -serial stdio, the QEMU screen did pop up but it had this message on it: "Guest has not initialized the display (yet)" and then it quits. What should I do and can you guys help me?