使用sbox出错: docker: invalid reference format.

```
>>>sbox -d applib -t python3.6

Entering the container. Your code is in the /code direcotry.
docker: invalid reference format.
See 'docker run --help'.
Error: exit status 125
```

fcli version: 1.0.3
Docker Engine:  19.03.8(Docker desktop community Macos)