Haskell编译：加载的接口是隐藏包的成员（它本身）

Question

我在编译taffybar模块时遇到了这个问题。实际上声称我需要加载这个隐藏的模块，这本身就是非常奇怪的。错误消息如下：

[~/Public/taffybar]-[myMaster↓]── - rm -rf ~/.cache/taffybar && taffybar                                   
Configuration '/home/jethros/.config/taffybar/taffybar.hs' changed. 
Recompiling.
Error occurred while loading configuration file.
Error: 
/home/jethros/.config/taffybar/taffybar.hs:26:1: error:
    Failed to load interface for ‘System.Taffybar.ToggleMonitor’
    It is a member of the hidden package ‘taffybar-0.4.6’.
    Use -v to see a list of the files searched for.