1. A concise explanation of the problem you're experiencing.
2. A minimal code example. If you've found a bug, this helps us reproduce and repair it.
npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.2.4
3. Context. Why do you need to do this? We might know a better way to accomplish your goal.
4. The Cesium version you're using, your operating system and browser.