GulpUglifyError: unable to minify JavaScript error with Browserify
I'm bundling my script with Browserify + Babel like this:
function buildJs() {
let bopts = {
paths: [
`${SRC}/js`,
'./config'
],
debug: !isProduction
};
let opts = Object.assign({}, watchify.args, bopts);
let b = watchify(persistify(opts));
b.add(`${SRC}/js/index.js`)
.on('update', bundle)
.on('log', gutil.log)
.external(vendors)
.transform(babelify, {
presets: ["es2015", "react"],
plugins: [
"syntax-async-functions",
"transform-regenerator",
"transform-class-properties",
"transform-decorators-legacy",
"transform-object-rest-spread",
"transform-react-jsx-source",
staticFs
]
})
.transform(browserifyCss, { global: true });
function bundle() {
let stream = b.bundle()
.on('error', swallowError)
.on('end', () => {
gutil.log(`Building JS:bundle done.`);
})
.pipe(source('bundle.js'))
.pipe(streamify(uglify()));
return stream.pipe(gulp.dest(`${DIST}/js`));
}
return bundle();
}
It's just browserify -> babelify -> browserify-css -> uglify -> gulp.dest. But If I ran this task, it fails with:
[17:00:30] Using gulpfile ~/ctc-web/gulpfile.js
[17:00:30] Starting 'build'...
[17:00:46] 1368516 bytes written (16.43 seconds)
[17:00:46] Building JS:bundle done.
events.js:160
throw er; // Unhandled 'error' event
^
GulpUglifyError: unable to minify JavaScript
at createError (/home/devbfex/ctc-web/node_modules/gulp-uglify/lib/create-error.js:6:14)
at wrapper (/home/devbfex/ctc-web/node_modules/lodash/_createHybrid.js:87:15)
at trycatch (/home/devbfex/ctc-web/node_modules/gulp-uglify/minifier.js:26:12)
at DestroyableTransform.minify [as _transform] (/home/devbfex/ctc-web/node_modules/gulp-uglify/minifier.js:79:19)
at DestroyableTransform.Transform._read (/home/devbfex/ctc-web/node_modules/readable-stream/lib/_stream_transform.js:159:10)
at DestroyableTransform.Transform._write (/home/devbfex/ctc-web/node_modules/readable-stream/lib/_stream_transform.js:147:83)
at doWrite (/home/devbfex/ctc-web/node_modules/readable-stream/lib/_stream_writable.js:338:64)
at writeOrBuffer (/home/devbfex/ctc-web/node_modules/readable-stream/lib/_stream_writable.js:327:5)
at DestroyableTransform.Writable.write (/home/devbfex/ctc-web/node_modules/readable-stream/lib/_stream_writable.js:264:11)
at Transform.ondata (_stream_readable.js:555:20)
Just skip uglify works, but I really need it.
The weird thing is that error was occured after end event. I tried using with vinyl-buffer, but same errors happen.
I couldn't find any solution, every my attemps fails with same error message.
What am I missing? Is there a something that I missed?
尝试用var替换let ，看看会发生什么。