Hakyll教程出错

Question

我正在遵循这个https://jaspervdj.be/hakyll/tutorials/01-installation.html中的Hakyll教程。

但是好像有什么不对劲，我不知道是什么。当我运行'stack init‘时，我得到了这个消息。

Looking for .cabal or package.yaml files to use to init the project.
Using cabal packages:
- ./

Selecting the best among 16 snapshots...

* Partially matches lts-14.16
    hakyll not found
        - ourblog-com requires ==4.13.*

* Partially matches nightly-2019-11-25
    hakyll not found
        - ourblog-com requires ==4.13.*

* Partially matches lts-13.30
    hakyll not found
        - ourblog-com requires ==4.13.*

* Partially matches lts-12.26
    hakyll version 4.12.4.0 found
        - ourblog-com requires ==4.13.*

* Partially matches lts-11.22
    hakyll version 4.12.3.0 found
        - ourblog-com requires ==4.13.*

* Partially matches lts-10.10
    hakyll version 4.10.0.0 found
        - ourblog-com requires ==4.13.*

* Partially matches lts-9.21
    hakyll version 4.9.8.0 found
        - ourblog-com requires ==4.13.*

* Partially matches lts-8.24
    hakyll version 4.9.7.0 found
        - ourblog-com requires ==4.13.*

* Partially matches lts-7.24
    hakyll not found
        - ourblog-com requires ==4.13.*

* Partially matches lts-6.35
    hakyll version 4.8.3.2 found
        - ourblog-com requires ==4.13.*

...

* Partially matches lts-0.7
    hakyll not found
        - ourblog-com requires ==4.13.*

Selected resolver: lts-14.16
Resolver 'lts-14.16' does not have all the packages to match your requirements.
    hakyll not found
        - ourblog-com requires ==4.13.*

This may be resolved by:
    - Using '--omit-packages' to exclude mismatching package(s).
    - Using '--resolver' to specify a matching snapshot/resolver

我的路径看起来是正确的。为什么会发生这种情况？

Answer 1

看起来Hakyll的维护者没有在Stack respository中保持最新状态。创建my-site目录后，不运行stack init，而是手动创建包含以下行的stack.yaml文件：

resolver: lts-14.16
packages:
- .
extra-deps:
- hakyll-4.13.0.1

然后按照指示运行stack build等。这似乎很管用。