Hmm... I'm confused about the Travis error. When I run the tests in my CLI, I get this error message (which isn't terribly helpful):

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! react-map-gl@5.2.0 test: flow check && ocular-test
npm ERR! Exit status 1

Have I made a mistake or omitted something necessary? (This is my first pull request here.) Thanks in advance.

I've made the requested changes. However, I'm still failing the Travis CI check. Can you provide any guidance?

I've made the requested changes. However, I'm still failing the Travis CI check.

You need to add it to the root package.json. CI does not install dependencies for each example.

I'm terribly sorry, but the Travis build failed again. I removed "eslint-config-react-app" from the example's config.json file and moved it to config.json in the root project. Could you please provide a further hint? (The Travis CI check seems like a "black box" to me.)

I removed "eslint-config-react-app" from the example's config.json file and moved it to config.json in the root project.

CI runs yarn at root. If eslint-config-react-app is not a root dependency, then it won't be installed.

If you don't really need the eslint setup for your example, then just remove it period. The repo has its own eslint configuration.

Looks like you have committed some irrelevant files in examples/geojson-markers.

Thank you. I've done the following:

1. Deleted esLintConfig from package.json for the CRA example.
2. Deleted eslint-config-react-app from root/package.json.
3. Deleted the extraneous files. (Sorry about that.)

Unfortunately, the Travis check is still failing. I'm feeling like an idiot. Could you please elaborate again on the problem?

CI is failing for a different issue (lint error).

/home/travis/build/uber/react-map-gl/examples/get-started/create-react-app/src/index.js
  5:26  error  'document' is not defined  no-undef

Have you run yarn at root before you commit?

Thanks for your tip. I'm using VS Code with the ESLint extension. I'm getting the following error message at the top level of the project:

ESLint: ESLint configuration in .eslintrc.js is invalid: - Property "overrides" is the wrong type (expected array but got `{"files":["*.spec.js","webpack.config.js","**/bundle/*.js"],"rules":{"import/no-extraneous-dependencies":0}}`). . Please see the 'ESLint' output channel for details.

What am I doing wrong? Thanks for your patience with this issue.

This issue was recently fixed, you may need to rebase master.

All committers have signed the CLA.