Error creating VPC in case of common network do not uses /16 range

[micafer]

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/IM/connectors/EC2.py", line 473, in create_networks
    vpc = conn.create_vpc(vpc_cird)
  File "/usr/local/lib/python3.6/dist-packages/boto/vpc/__init__.py", line 134, in create_vpc
    return self.get_object('CreateVpc', params, VPC)
  File "/usr/local/lib/python3.6/dist-packages/boto/connection.py", line 1208, in get_object
    raise self.ResponseError(response.status, response.reason, body)
boto.exception.EC2ResponseError: EC2ResponseError: 400 Bad Request
<?xml version="1.0" encoding="UTF-8"?>
<Response><Errors><Error><Code>InvalidVpc.Range</Code><Message>The CIDR '10.0.0.0/8' is invalid.</Message></Error></Errors><RequestID>551dfd40-5e5d-4110-9b9a-678c46055acb</RequestID></Response>