Slack notification fails due to CURL not being found

[Phonesis]

We are encountering an issue with the Slack orb where it fails to send notifications with the following error:

Posting Status
BASH_ENV file: /tmp/.bash_env-64787603c7b73906b9e7dc78-0-build
Does Not Exist. Skipping file execution
Checking For JQ + CURL
SLACK ORB ERROR: CURL is required. Please install

I have tried to install curl via npm but this doesn't seem to work. The stage we use it with uses a custom docker executor but I don't understand why this would be a problem:

executors:
  latest-chrome-firefox-edge:
    docker:
      - image: cypress/browsers:latest

We attach the workspace to root as follows

      - attach_workspace:
          at: .

Any ideas what is going on?

[Phonesis]

Update for those with similar issue. This appears to be specific to when using certain images (such as the Cypress ones). The fix for us was to install curl manually using apt-get update && apt-get install curl -y