ERROR: Invalid interpolation format for "CONSOLE_API_URL" option in service "x-shared-env": "${CONSOLE_API_URL:-}"

[macauazhi]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

Hello, all:
I'm fresh man on using dify. I follow the direct to startup my dify service on a openular linux server, the steps is below:

> 1、git clone https://github.com/langgenius/dify.git
> 2、cd dify/docker
> 3、cp .env.example .env
> 4、docker-compose up -d
then I got the erro:

ERROR: Invalid interpolation format for "CONSOLE_API_URL" option in service "x-shared-env": "${CONSOLE_API_URL:-}"
please help me, thanks a lot!!

2. Additional context or comments

No response

[macauazhi]

by the way:

(base) [compass@localhost docker]$ docker -v
Docker version 18.09.0, build 760d2ff
(base) [compass@localhost docker]$ docker-compose -v
docker-compose version 1.22.0, build f46880f
(base) [compass@localhost docker]$