如何将tarball（Cardinality包）添加到依赖堆栈？

Question

我有mylib库包和myapp应用程序。我想在mylib中使用Cardinality包，它只能作为tarball使用。所以，我添加到mylib stack.yaml：

packages:
  ...
  - location: https://hackage.haskell.org/package/Cardinality-0.2/Cardinality-0.2.tar.gz
    extra-dep: true

然后我添加到mylib的cabal文件：

build-depends: ...
               , Cardinality

它可以编译。现在我正在尝试构建依赖于mylib的myapp工具：

packages:
  ...
  - '../mylib'

但我得到错误：

Error: While constructing the build plan, the following exceptions were encountered:

In the dependencies for mylib:
    Cardinality must match -any, but the stack configuration has no specified version (latest matching version is 0.2)
needed since mylib is a build target.

Some potential ways to resolve this:

  * Recommended action: try adding the following to your extra-deps in /home/XXXX/prj/myapp/stack.yaml:

- Cardinality-0.2

  * Set 'allow-newer: true' to ignore all version constraints and build anyway.

  * You may also want to try using the 'stack solver' command.

Plan construction failed.

那么，如何以正确的方式将基数tarball添加到mylib包中？！