I am not use this shards, instead of, I use https://github.com/crystal-cache/cache, but my project still broken because this shards 😅
Showing last frame. Use --error-trace for full trace.
In lib/splay_tree_map/src/splay_tree_map.cr:68:33
68 | @lock = Mutex.new(protection: Mutex::Protection::Reentrant)
^---------------------------
Error: undefined constant Mutex::Protection::Reentrant
I am not use this shards, instead of, I use https://github.com/crystal-cache/cache, but my project still broken because this shards 😅