@ -138,7 +138,7 @@ function execute ( options, command ) {
var watch = relative( 'rollup-watch', process.cwd() );
var watcher = watch( rollup, options );
watcher.on( 'event', event => {
watcher.on( 'event', function ( event ) {
switch ( event.code ) {
case 'STARTING':
console.error( 'checking rollup-watch version...' );