In native CMD, oracle within the virtual machine, failed to create table space, could you tell me what is the reason,

The first picture: the connection is successful,
Second picture: failed to create a table space,
Graph 3: I want to create a table space path exists,
Excuse me, is to create the cause of the failure? I connected through the machine, the virtual machine oracle, in what identity to create table space? SYS? That does not exist without permission problem, please everybody