为什么Rails命令强制执行`new`命令的帮助消息？
奇怪的是，在某些情况下我无法执行典型的Rails命令，例如rails s和rails c 。
我发现这发生在某个function分支上，并且偶尔也会发生在过去，但目前在我的develop分支上工作。
我撤消了任何可以加载并具有任何效果的.rb文件，但这没有帮助，其他其他更改是.sh文件和自述文件更新。
文字我不想看到：
> rails Usage: rails new APP_PATH [options] Options: -r, [--ruby=PATH] # Path to the Ruby binary of your choice # Default: /Users/jsmall/.rvm/rubies/ruby-2.1.5/bin/ruby -b, [--builder=BUILDER] # Path to a application builder (can be a filesystem path or URL) -m, [--template=TEMPLATE] # Path to an application template (can be a filesystem path or URL) [--skip-gemfile], [--no-skip-gemfile] # Don't create a Gemfile [--skip-bundle], [--no-skip-bundle] # Don't run bundle install -G, [--skip-git], [--no-skip-git] # Skip Git ignores and keeps -O, [--skip-active-record], [--no-skip-active-record] # Skip Active Record files -S, [--skip-sprockets], [--no-skip-sprockets] # Skip Sprockets files -d, [--database=DATABASE] # Preconfigure for selected database (options: mysql/oracle/postgresql/sqlite3/frontbase/ibm_db/sqlserver/jdbcmysql/jdbcsqlite3/jdbcpostgresql/jdbc) # Default: sqlite3 -j, [--javascript=JAVASCRIPT] # Preconfigure for selected JavaScript library # Default: jquery -J, [--skip-javascript], [--no-skip-javascript] # Skip JavaScript files [--dev], [--no-dev] # Setup the application with Gemfile pointing to your Rails checkout [--edge], [--no-edge] # Setup the application with Gemfile pointing to Rails repository -T, [--skip-test-unit], [--no-skip-test-unit] # Skip Test::Unit files [--old-style-hash], [--no-old-style-hash] # Force using old style hash (:foo => 'bar') on Ruby >= 1.9 Runtime options: -f, [--force] # Overwrite files that already exist -p, [--pretend], [--no-pretend] # Run but do not make any changes -q, [--quiet], [--no-quiet] # Suppress status output -s, [--skip], [--no-skip] # Skip files that already exist Rails options: -h, [--help], [--no-help] # Show this help message and quit -v, [--version], [--no-version] # Show Rails version number and quit Description: The 'rails new' command creates a new Rails application with a default directory structure and configuration at the path you specify. You can specify extra command-line arguments to be used every time 'rails new' runs in the .railsrc configuration file in your home directory. Note that the arguments specified in the .railsrc file don't affect the defaults values shown above in this help message. Example: rails new ~/Code/Ruby/weblog This generates a skeletal Rails installation in ~/Code/Ruby/weblog. See the README in the newly created application to get going.
我希望看到的文字：
> rails Usage: rails COMMAND [ARGS] The most common rails commands are: generate Generate new code (short-cut alias: "g") console Start the Rails console (short-cut alias: "c") server Start the Rails server (short-cut alias: "s") dbconsole Start a console for the database specified in config/database.yml (short-cut alias: "db") new Create a new Rails application. "rails new my_app" creates a new application called MyApp in "./my_app" In addition to those, there are: application Generate the Rails application code destroy Undo code generated with "generate" (short-cut alias: "d") benchmarker See how fast a piece of code runs profiler Get profile information from a piece of code plugin Install a plugin runner Run a piece of code in the application environment (short-cut alias: "r") All commands can be run with -h (or --help) for more information.
通过随机阅读这个答案（ StackOverflow – 为什么我的rails命令总是创建一个新的应用程序？ ），它让我想到检查项目中的script文件夹。 我之前提到过它，这就是Rails一直试图让我通过特定的帮助屏幕创建一个新项目的原因。
将rails命令移回script文件夹有助于rails检测我的项目，脚本允许我再次使用其他命令。
我将在这里问一个新问题，为什么我这样做，以及如何解决它。
我发现我的应用程序根目录中没有bin文件夹。 快速修复：
bundle exec rake rails:update:bin
普拉迪普的道具：
Rails服务器无法通过命令“Rails s”启动