我租了一台Ubuntu服务器。我想在它上面执行一个构建,但是Stack无法下载GHC。我在互联网上找不到任何解决方案。我也试图降级Stack,但在尝试下载GHC时失败。你能帮帮我吗?你有什么解决方案或变通方法吗? stack install
Preparing to install GHC to an isolated location.
This will not interfere with any system-level installation.
Preparing to download ghc-8.10.3 ...
Download expectation failure: H