Build a local addon in trouble

Dockerfile:

ARG BUILD_FROM
FROM $BUILD_FROM
ENV LANG C.UTF-8
WORKDIR /dingdang

RUN apk add --no-cache emacs bison uuid-dev fswebcam

COPY run.sh /
RUN chmod a+x /run.sh

CMD [ “/run.sh” ]

config.json:

{
“name”: “dingdang-bot”,
“version”: “0.1”,
“slug”: “dingdang-bot”,
“description”: “DingDang-Bot add-on!”,
“startup”: “before”,
“boot”: “auto”,
“schema”: {},
“audio”: true,
“ports”: {
“8000/tcp”: 8000
}
}

I got the following error.

ERROR: unsatisfiable constraints:
fswebcam (missing):
required by: world[fswebcam]
uuid-dev (missing):
required by: world[uuid-dev]

How can I fix the error? thx.