Rails 命令错误

我即将开始开发另一个 Web 应用程序，我将目录更改为

/rails_projects

并输入

导轨新空白

然后我得到这个错误

Error: Command not recognized
Usage: rails COMMAND [ARGS]

The common rails commands available for engines are:
 generate    Generate new code (short-cut alias: "g")
 destroy     Undo code generated with "generate" (short-cut alias: "d")

All commands can be run with -h for more information.

If you want to run any commands that need to be run in context
of the application, like `rails server` or `rails console`,
you should do it from application's directory (typically test/dummy).

我已经重新安装了 Rails，但仍然出现同样的错误，有什么想法吗？

UPDATE:

当我输入时，它实际上给了我同样的错误

rails -h

rails

in cmd

对于任何可能遇到类似错误的人来说，这为我解决了这个问题：

rake rails:update:bin

这将生成二进制文件的“新”版本。说啊Yes当它要求您更换它们时。