按照官网上的文档部署micro bosh 出现下面如下错误 ，我的配置文件也在下面，请高手给点建议

[treedemo]

错误如下：

Deploying new micro BOSH instance `micro01/micro_bosh.yml' to `http://192.168.1.122:25555' (type 'yes' to continue): yes

Verifying stemcell...
File exists and readable FAILED

Stemcell is invalid, please fix, verify and upload again
部署清单：

---
name: micro01
network:
ip: 192.168.1.122
netmask: 255.255.255.0
gateway: 192.168.1.1
dns:
- 8.8.8.8
- 8.8.4.4
cloud_properties:
name: VM Network
resources:
persistent_disk: 16384
cloud_properties:
ram: 4096
disk: 16384
cpu: 2
cloud:
plugin: vsphere
properties:
agent:
ntp:
- time.windows.com - ntp02.las01.emcatmos.com
vcenters:
- host: 192.168.1.26
user: administrator
password: Passw0rd
datacenters:
- name: NewDatacenter
vm_folder: vm_folder
template_folder: template_folder
disk_path: boshdeployer
datastore_pattern: datastore1
persistent_datastore_pattern: datastore1
allow_mixed_datastores: true
clusters:
- Newcluster