run npm ci hangs on docker build ubuntu

Question

I'm trying to build a docker file for an ionic project, on ubuntu virtualbox. Here's the dockerfile:

# Build
FROM beevelop/ionic AS ionic
# Create the application directory
WORKDIR /usr/src/app
# Install the application dependencies
# We can use wildcard to ensure both package.json AND package-lock.json are considered
# where available (npm@5+)
COPY package*.json ./
RUN npm --verbose ci
# Bundle app source
COPY . .
RUN ionic build

## Run 
FROM nginx:alpine
#COPY www /usr/share/nginx/html
COPY --from=ionic /usr/src/app/www /usr/share/nginx/html

My problem is that the build gets stuck on step 4 ( RUN npm --verbose ci ) It starts downloading some packages, but then it hangs at some point. I tried different solution:

npm clean cache
npm config set registry http://registry.npmjs.org/

removing package-lock.json

But nothing works, any help will be greatly apprecited. Thanks in advance

Answer 1

To whoever experienced this problem, it was to due to internet connection. Keep trying until it downloads all the packages.