Can't bundle with rollup v0.33.0
When trying to bundle buble@0.12.3
with rollup@0.33.0
and rollup-plugin-node-resolve@1.7.1
I get the following error:
Error parsing /.../node_modules/buble/dist/buble.es.js: 'import' and 'export' may only appear at the top level (4:0) in /.../node_modules/buble/dist/buble.es.js