Node.js 使用UglifyMinifier.optimize中Heroku上的早午餐时NPM中的类型错误

我最近将早午餐和相关库（例如，uglify js早午餐）升级到1.7.x。当推到Heroku时，我将错误粘贴到下面。有什么线索可以帮我解决这个问题吗

谢谢

-----> Installing dependencies

       > xxxx@0.0.1 postinstall /tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0
       > brunch build --production


       /tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0/node_modules/uglify-js-brunch/lib/index.js:48
               data: optimized.code
                              ^
       TypeError: Cannot read property 'code' of undefined
           at UglifyMinifier.module.exports.UglifyMinifier.optimize (/tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0/node_modules/uglify-js-brunch/lib/index.js:48
:24)
           at /tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0/node_modules/brunch/lib/fs_utils/generate.js:220:25
           at fn (/tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0/node_modules/brunch/node_modules/async-waterfall/index.js:19:24)
           at Object._onImmediate (/tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0/node_modules/brunch/node_modules/async-waterfall/index.js:58:22)
           at processImmediate [as _immediateCallback] (timers.js:330:15)

       npm ERR! xxxx@0.0.1 postinstall: `brunch build --production`
       npm ERR! Exit status 8
       npm ERR!
       npm ERR! Failed at the xxxx@0.0.1 postinstall script.
       npm ERR! This is most likely a problem with the xxxx package,
       npm ERR! not with npm itself.
       npm ERR! Tell the author that this fails on your system:
       npm ERR!     brunch build --production
       npm ERR! You can get their info via:
       npm ERR!     npm owner ls xxxx
       npm ERR! There is likely additional logging output above.
       npm ERR! System Linux 3.8.11-ec2
       npm ERR! command "/tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0/vendor/node/bin/node" "/tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0/vendor/node/bin/np
m" "install" "--production"
       npm ERR! cwd /tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0
       npm ERR! node -v v0.10.22
       npm ERR! npm -v 1.3.14
       npm ERR! code ELIFECYCLE
       npm ERR!
       npm ERR! Additional logging details can be found in:
       npm ERR!     /tmp/build_d24a4120-fea7-4048-bddb-66be19b378f0/npm-debug.log
       npm ERR! not ok code 0

---

这实际上在uglify js brunch的v1.7.4中得到了修复

你能在GitHub上打开一个问题吗？我确实在GitHub上找到了一个与我的问题非常相似的问题，但我还没能通过它的建议来确定修复是否对我有效：我还没能通过上面链接的问题来解决它，所以我创建了