Heroku拒绝推送Meteor应用

当我尝试将我的应用程序推送到Heroku时，我一直收到此错误：

git push heroku master

Counting objects: 14, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (13/13), done.
Writing objects: 100% (14/14), 3.18 KiB | 0 bytes/s, done.
Total 14 (delta 11), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Node.js app detected
remote: -----> Meteor version: Meteor 1.4.0.1
remote: -----> Checking if this meteor version supports --server-only
remote: cp: cannot stat ‘/app/tmp/cache/1.3.4.1/.meteor/packages/meteortool/.1.3.4_1.tskw1g++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/bin/node\n/app/tmp/cache/1.3.4.1/.meteor/packages/meteor-tool/.1.4.0-1.1lf30np++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/bin/node’: No such file or directory
remote:  !     Push rejected, failed to compile Node.js app.
remote:
remote:  !     Push failed
remote: Verifying deploy...
remote:
remote: !       Push rejected to [name-of-app].

可能是什么问题？就在几个小时前，我设法没有出现任何错误。