[libvirt-users] delete storage pool error

hi,all I create pool with lvm,but i carelessly add a blank space in the pool name like ' lvm_pool' , now I want to delete this pool,but encounter a error: error: Failed to delete pool lvm_pool error: internal error Child process (/sbin/vgremove -f lvm_pool) status unexpected: exit status 5 how to solve this problem? thanks