Build error: Skipping static resource ... - max size is 2.1 MB

Created by: vinhngle

Hi all, I got problem when run yarn build.

⇒  yarn build
yarn build v0.24.5
$ react-scripts build
Creating an optimized production build...
Skipping static resource ".../react-example/build/static/js/main.aa0e5d44.js" (2.24 MB) - max size is 2.1 MB
Failed to compile.

static/js/main.aa0e5d44.js from UglifyJs
Unexpected token: operator (>) [./~/get-stream/buffer-stream.js:4,0][static/js/main.aa0e5d44.js:35510,23]

error Command failed with exit code 1.

I'm using the lates yarn with node 6.10.3

I created an example repo with build error here.

Can you help me to figure out why the project failed to compile? Thank you!!!