not displaying list of vm with puppet node_vmware list command

[Ankita kumari]

 [root@puppetmasterappd ~]# puppet node_vmware list
Notice: Connecting ...

After that nothing is coming. I am not clear with where to create the .fog file. I am creating it in root directory of the root user. Then I am running this command and it is giving this.

[Ankita kumari]

i tried deleting the .fog file and creating it again. now this error is coming.

[root@puppetmasterappd ~]# puppet node_vmware list
Notice: Connecting ...

Error: undefined method `reject' for #<Symbol:0x00000001c8a70e>
Error: Try 'puppet help node_vmware list' for usage