use*_*236 5 haskell ghcjs haskell-stack
使用 Haskell Stack 初始化 GHCJS 项目需要做什么?
按照堆栈文档,我尝试初始化一个 GHCJS 项目,以便可以将 Haskell 代码编译为 JavaScript。
完成后stack templates我看到有一个 GHCJS 模板
ghcjs - Haskell to JavaScript compiler, based on GHC
Run Code Online (Sandbox Code Playgroud)
当我尝试使用此模板的新命令时,如下所示:
stack new ghcjsSetup ghcjs
我收到此错误消息:
Downloading template "ghcjs" to create project "ghcjsSetup" in ghcjsSetup/ ...
The following parameters were needed by the template but not provided: author-email, author-name, category, copyright, github-username
You can provide them in /home/u/.stack/config.yaml, like this:
templates:
params:
author-email: value
author-name: value
category: value
copyright: value
github-username: value
Or you can pass each one as parameters like this:
stack new ghcjsSetup ghcjs -p "author-email:value" -p "author-name:value" -p "category:value" -p "copyright:value" -p "github-username:value"
Looking for .cabal or package.yaml files to use to init the project.
Using cabal packages:
- ghcjsSetup/ghcjsSetup.cabal
Selecting the best among 11 snapshots...
* Partially matches lts-9.11
ghcjs-base not found
- ghcjsSetup requires -any
Downloaded nightly-2017-11-01 build plan.
Unable to parse cabal file: FromString "This package requires at least Cabal version 2.0" Nothing
Run Code Online (Sandbox Code Playgroud)
我最近也遇到同样的错误。显然你有一个旧版本的stack. 您需要将其升级到版本>= 1.5.1。正如我所想,出现此错误是因为某些文件格式发生了变化Cabal ver. 2.0。