diff --git a/kclvm/tools/src/LSP/src/tests.rs b/kclvm/tools/src/LSP/src/tests.rs
index 8a2f2cd90..b265a98b3 100644
--- a/kclvm/tools/src/LSP/src/tests.rs
+++ b/kclvm/tools/src/LSP/src/tests.rs
@@ -1,7 +1,6 @@
 use crossbeam_channel::after;
 use crossbeam_channel::select;
 use indexmap::IndexSet;
-use kclvm_error::diagnostic;
 use kclvm_sema::core::global_state::GlobalState;
 use lsp_server::RequestId;
 use lsp_server::Response;