To test salt-stack I would like to copy a config file to another distant one (I am testing master and minion in localhost)

/etc/salt/minion :

master: 127.0.0.1
file_roots:
  base:
    - /srv/salt/base

/etc/salt/master:

interface: 0.0.0.0

The /srv/salt tree :

 # tree srv/
srv/
├── salt
│   └── base
│       └── env
│           ├── envpy.template
│           └── init.sls
└── top.sls

and the template file :

# cat /srv/salt/base/env/envpy.template
This is a test !

and this is the init file:

#  cat /srv/salt/base/env/init.sls 

/home/myHome/env.py:
  file:
    - managed
    - source: salt://base/env/envpy.template

and finally the top file:

# cat  /srv/salt/top.sls 
base:
  '*':
    - base.env

Running salt highstate:

# salt '*' state.highstate 
myHost:
----------
          ID: states
    Function: no.None
      Result: False
     Comment: No Top file or external nodes data matches found
     Started: 
    Duration: 
     Changes:   

Summary
------------
Succeeded: 0
Failed:    1
------------
Total states run:     1

Do you have any idea why I've got this error ?