How do I fix build error with '@sentry/react'

[Alice Kim]

Whenever I try to implement Pipelines, I got this error message during npm build time.

`Module not found: Error: Can't resolve '@sentry/react' in '/opt/atlassian/pipelines/agent/build/src'`

To fix this error, I put below command in bitbucket-pipelines.yml file but still build module not found error is happened.

```

- step:

  name: 'installing dependencies...'

  caches:

    - node

  script:

      - rm -r node_modules

      - npm install -g npm

      - npm install

- step:

  name: 'Building project'

  caches:

    - node

  script:

      - CI=false npm run build

      artifacts:

      - build/**

```

How can I fix this module issue during pipeline work?

Build is working well in local environment and also Jenkins environment.

[Theodora Boudale · Accepted solution]

Hi @Alice Kim and welcome to the community!

Which command is giving you this error? I assume it is the command CI=false npm run build ?

I see that you are installing dependencies in the previous step named 'installing dependencies...'. Are these dependencies needed in order to run the build in the next step, 'Building project'? If so, I would suggest building the project in the same step where you install the dependencies, and then checking if that eliminates the error.

For every step in your bitbucket-pipelines.yml file, a Docker container starts, your repo is cloned (unless you have disabled clone), then the commands of that step's script are executed, and afterwards the container gets destroyed. If you need any dependencies to run a build, they should be installed in the same step that uses them.

I see that you are using node cache, but please keep in mind that (1) caches are saved after the first successful build, and (2) caches are cleared automatically after 1 week and repopulated during the next successful build. Therefore, builds should be configured to work whether or not the cache is present.

Kind regards,
Theodora

[Alice Kim]

I don't know why it is working now but it works.

Thank you for your kindful answer. 🥲

Later if it is not working then I'll try your suggestion!