1 files changed, 1 insertions, 10 deletions
diff --git a/src/btreemap.rs b/src/btreemap.rs
index 2ada9aa..77a0651 100644
--- a/src/btreemap.rs
+++ b/src/btreemap.rs
@@ -5,16 +5,7 @@ use std::hash::Hash;
 use std::iter::FromIterator;
 use std::iter::IntoIterator;
 
-#[derive(Debug, thiserror::Error)]
-pub enum Error<K>
-    where K: Debug,
-{
-    #[error("duplicated key in iterator: {:?}", _0)]
-    DuplicatedKey(K),
-
-    #[error("unknown error")]
-    Unknown,
-}
+use crate::error::Error;
 
 pub struct CollectOnceBTreeMap<K, V>
     where K: Eq + Ord + Hash + Debug