我正在将Heroku上托管的Sails.js应用程序移动到Amazon ElasticBeanstalk。当应用程序启动时，它会抛出以下Grunt错误（从eb logs拉出）：
info: Sails <| .-..-.
info: v0.11.5 |\
info: /|.\
info: / || \
info: ,' |' \
info: .-'.-==|/_--'
info: `--'-------'
info: __---___--___---___--___---___--___
info: ____---___--___---___--___---___--___-__
info:
info: Server lifted in `/var/app/current`
info: To see your app, visit http://localhost:8081
info: To shut down Sails, press <CTRL> + C at any time.
debug: --------------------------------------------------------
debug: :: Mon Feb 29 2016 08:21:46 GMT+0000 (UTC)
debug: Environment : development
debug: Port : 8081
debug: --------------------------------------------------------
error: ** Grunt :: An error occurred. **
error:
------------------------------------------------------------------------
>> FileError: '../bower_components/bootstrap/less/grid.less' wasn't found in assets/styles/importer.less on line 9, column 1:
>> 8 // Import Bootstrap
>> 9 @import "../bower_components/bootstrap/less/grid.less";
>> 10 @import "../bower_components/bootstrap/less/mixins.less";
Warning: Error compiling assets/styles/importer.less
Aborted due to warnings.
Running "less:dev" (less) task
------------------------------------------------------------------------
error: Looks like a Grunt error occurred--
error: Please fix it, then **restart Sails** to continue running tasks (e.g. watching for changes in assets)
error: Or if you're stuck, check out the troubleshooting tips below.
error: Troubleshooting tips:
error:
error: *-> Are "grunt" and related grunt task modules installed locally? Run `npm install` if you're not sure.
error:
error: *-> You might have a malformed LESS, SASS, CoffeeScript file, etc.
error:
error: *-> Or maybe you don't have permissions to access the `.tmp` directory?
error: e.g., `/var/app/current/.tmp` ?
error:
error: If you think this might be the case, try running:
error: sudo chown -R 497 /var/app/current/.tmp
相同的代码在我的本地开发笔记本电脑和Heroku上运行良好，但在ElasticBeanstalk上运行不正常。为什么找不到引导程序文件？这是一个PaaS，我甚至无法运行日志推荐的推荐sudo chown命令。另外要明确的是，我在package.json文件中有以下命令：
"scripts": {
"postinstall": "bower install; grunt build",
"debug": "node debug app.js",
"start": "node app.js"
}
我已指示脚本在机器中安装NPM软件包后运行bower install。我的/ assets文件夹中的所有图像似乎都没有加载。不知道发生了什么事。请帮忙。