yesod init命令在Windows上不起作用 [英] yesod init command does not work on Windows

问题描述

我做了以下步骤来安装Yesod web框架。

  mkdir mypackage 
 cd mypackage 
 cabal update 
 cabal sandbox init 
 cabal install yesod-platform yesod-bin --max-backjumps = -1 --reorder-goals 
  

当我尝试执行 yesod init 时，我收到了一条错误消息。

'yesod'不被识别为内部或外部命令，可操作程序或批处理文件。

我使用搜索来查找任何类似yesod的文件，但我找不到任何 yesod.exe 或类似的东西。我搜查了整个C：驱动器。

yesod命令发生了什么？

解决方案

yesod.exe文件应该在 mypackage / .cabal-sandbox / bin / yesod.exe中。。如果不存在，请尝试再次安装yesod-bin。该目录不会添加到路径中，因此Windows命令行无法找到yesod.exe。尝试从mypackage目录中的命令行执行以下操作：

  .cabal-sandbox\bin\yesod init 
  

当您想运行开发服务器时，您会遇到同样的问题。我通过在项目目录中创建一个名为devel.bat的文件，并在以下内容中解决了这个问题：

  set PATH =％PATH％;％CD％\.cabal-sandbox\bin 
 yesod devel 
  

<然后运行该文件启动开发服务器。

I did the following steps to install the Yesod web framework.

mkdir mypackage
cd mypackage
cabal update
cabal sandbox init
cabal install yesod-platform yesod-bin --max-backjumps=-1 --reorder-goals

When I then tried to do yesod init, I got an error message.

'yesod' is not recognized as an internal or external command, operable program or batch file.

I used search to find any yesod-like file but I couldn't find any yesod.exe or anything like that. I have searched the entire C: drive.

What happened to the yesod command?

解决方案

The yesod.exe file should be in mypackage/.cabal-sandbox/bin/yesod.exe.. If its not there, try to install yesod-bin again. This directory is not added to the path so the windows command line cannot find yesod.exe. Try this from a command line in the mypackage directory:

.cabal-sandbox\bin\yesod init

You will have the same problem when you want to run the development server. I solve this on my windows pc by creating a file called devel.bat in the project directory with the following contents:

set PATH=%PATH%;%CD%\.cabal-sandbox\bin
yesod devel

Then run the file to start the development server.

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