Solving the error of "docker build" not accesing package.json

Question

I am trying to build an image for an express app and I have issues running the command. The error indicates that the package.json file is not accessible. Please look at the structure error below.

Sending build context to Docker daemon  2.048kB
Step 1/7 : FROM node:8-alpine
 ---> 2b8fcdc6230a
Step 2/7 : WORKDIR /usr/src/app
 ---> Using cache
 ---> d0f2d783ba5a
Step 3/7 : COPY package*.json ./
COPY failed: no source files were specified

Also, the docker file is shown below:

FROM node:8-alpine
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD [ "npm", "start" ]

Then lastly the file structure is shown below:

I'd like any assistance possible. Thanks.

question from:https://stackoverflow.com/questions/65844113/solving-the-error-of-docker-build-not-accesing-package-json

Answer 1

This could be due to the Node.JS version you are trying to use in the docker file, i'm not entirely sure if this is the case but I have used this docker file with my node.js express application and it seemed to work. Give it a shot.

FROM node:12
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]