'chmod: install.sh: No such file or directory On Docker

So my problem when i running this

chmod -x install.sh

keep return chmod: install.sh: No such file or directory meanwhile my tree like this

Dockerfile  app/  docker-compose.yml  install.sh*  installer.sh*  public/  tmp/

and this is docker code

RUN apk add curl gcc g++ make git --no-cache \ 
&& chmod +x install.sh && sh install.sh && cp ./bin/air /bin/air \
&& mkdir -p /app

can someone know what's wrong with mine? and for line spacing my vscode already LF

docker

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