Error: Domain 'vm00' does not exist. Error: Unable to open config file: vm00

You may get the below errors while starting or enter into vps from node on xen.

[root@test ~]# xm start vm00

Error: Domain 'vm00' does not exist.

[root@test ~]# xm reboot vm00
Error: Domain 'vm00' does not exist.

[root@test ~]# xm create vm00
Error: Unable to open config file: vm00

Solution :
[root@test ~]# xm create /home/xen/vm00/vm00.cfg
Using config file "/home/xen/vm00/vm00.cfg".
Started domain vm00 (id=27)