yarn.lock does not exist ➜ StrapiServerless docker build -t mystrapi:latest . [+] Building 17.0s (9/14) => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 37B 0.0s => [internal] load .dockerignore 0.0s => => transferring context: 34B 0.0s => [internal] load metadata for docker.io/library/node:16 16.9s => [internal] load build context 0.0s => => transferring context: 12.87kB 0.0s => CANCELED [ 1/10] FROM docker.io/library/node:16@sha256:32605ead97ed57bd39a8a7b0e919240e1a3218974dfc6965e61b54a801753131 0.0s => => resolve docker.io/library/node:16@sha256:32605ead97ed57bd39a8a7b0e919240e1a3218974dfc6965e61b54a801753131 0.0s => => sha256:b025e782e09fa7e1cdfab96049de130c27dd8d641c5220335d5905760e62c53f 7.62kB / 7.62kB 0.0s => => sha256:32605ead97ed57bd39a8a7b0e919240e1a3218974dfc6965e61b54a801753131 1.21kB / 1.21kB 0.0s => => sha256:085b1865ac9604641514610a340c6490b4c641b7370b00a75686f5bff8971688 2.21kB / 2.21kB 0.0s => CACHED [ 2/10] RUN apt-get update && apt-get install libvips-dev 0.0s => CACHED [ 3/10] WORKDIR /opt/ 0.0s => CACHED [ 4/10] COPY ./package.json ./ 0.0s => ERROR [ 5/10] COPY ./yarn.lock ./ 0.0s ------ > [ 5/10] COPY ./yarn.lock ./: ------ failed to compute cache key: "/yarn.lock" not found: not found and after I comment this line I found your Dockerfile in line 3 forget to add -y for argee install, here is my Dockerfile FROM node:16 # Installing libvips-dev for sharp compatability RUN apt-get update && apt-get install -y libvips-dev ARG NODE_ENV=development ENV NODE_ENV=${NODE_ENV} WORKDIR /opt/ COPY ./package.json ./ ENV PATH /opt/node_modules/.bin:$PATH RUN yarn config set network-timeout 600000 -g RUN yarn install WORKDIR /opt/app COPY ./ . RUN yarn build EXPOSE 1337 CMD ["yarn", "develop"]