diff --git a/libs/hbb_common/src/fs.rs b/libs/hbb_common/src/fs.rs
index 780cdbbb7..8aa36dee4 100644
--- a/libs/hbb_common/src/fs.rs
+++ b/libs/hbb_common/src/fs.rs
@@ -581,7 +581,7 @@ impl TransferJob {
                         self.set_file_confirmed(true);
                     }
                 }
-                Some(file_transfer_send_confirm_request::Union::offset_blk(offset)) => {
+                Some(file_transfer_send_confirm_request::Union::offset_blk(_offset)) => {
                     self.set_file_confirmed(true);
                 }
                 _ => {}
diff --git a/src/server/connection.rs b/src/server/connection.rs
index f4780ea4d..3a026d924 100644
--- a/src/server/connection.rs
+++ b/src/server/connection.rs
@@ -7,8 +7,6 @@ use crate::common::update_clipboard;
 use crate::{common::MOBILE_INFO2, mobile::connection_manager::start_channel};
 use crate::{ipc, VERSION};
 use hbb_common::fs::can_enable_overwrite_detection;
-use hbb_common::log::debug;
-use hbb_common::message_proto::file_transfer_send_confirm_request::Union;
 use hbb_common::{
     config::Config,
     fs,
@@ -23,7 +21,6 @@ use hbb_common::{
     },
     tokio_util::codec::{BytesCodec, Framed},
 };
-use libc::{printf, send};
 #[cfg(any(target_os = "android", target_os = "ios"))]
 use scrap::android::call_input_service_mouse_input;
 use serde_json::{json, value::Value};
diff --git a/src/ui/cm.rs b/src/ui/cm.rs
index 421750200..91ea8e513 100644
--- a/src/ui/cm.rs
+++ b/src/ui/cm.rs
@@ -8,15 +8,13 @@ use hbb_common::fs::{
     can_enable_overwrite_detection, get_string, is_write_need_confirmation, new_send_confirm,
     DigestCheckResult,
 };
-use hbb_common::log::log;
 use hbb_common::{
     allow_err,
     config::Config,
     fs, get_version_number, log,
     message_proto::*,
     protobuf::Message as _,
-    tokio::{self, sync::mpsc, task::spawn_blocking},
-    ResultType,
+    tokio::{self, sync::mpsc, task::spawn_blocking}
 };
 use sciter::{make_args, Element, Value, HELEMENT};
 use std::{
@@ -278,9 +276,9 @@ impl ConnectionManager {
                     }
                 }
                 ipc::FS::WriteOffset {
-                    id,
-                    file_num,
-                    offset_blk,
+                    id: _,
+                    file_num: _,
+                    offset_blk: _,
                 } => {}
             },
             #[cfg(windows)]
diff --git a/src/ui/remote.rs b/src/ui/remote.rs
index 34db3d507..d168e190a 100644
--- a/src/ui/remote.rs
+++ b/src/ui/remote.rs
@@ -21,14 +21,13 @@ use clipboard::{
 };
 use enigo::{self, Enigo, KeyboardControllable};
 use hbb_common::fs::{
-    can_enable_overwrite_detection, get_string, is_file_exists, new_send_confirm,
+    can_enable_overwrite_detection, get_string, new_send_confirm,
     DigestCheckResult, RemoveJobMeta, get_job,
 };
-use hbb_common::log::log;
 use hbb_common::{
     allow_err,
-    config::{self, Config, LocalConfig, PeerConfig},
-    fs, get_version_number, log,
+    config::{Config, LocalConfig, PeerConfig},
+    fs, log,
     message_proto::{permission_info::Permission, *},
     protobuf::Message as _,
     rendezvous_proto::ConnType,
@@ -46,8 +45,7 @@ use hbb_common::{config::TransferSerde, fs::TransferJobMeta};
 use crate::clipboard_file::*;
 use crate::{
     client::*,
-    common::{self, check_clipboard, update_clipboard, ClipboardContext, CLIPBOARD_INTERVAL},
-    VERSION,
+    common::{self, check_clipboard, update_clipboard, ClipboardContext, CLIPBOARD_INTERVAL}
 };
 
 type Video = AssetPtr<video_destination>;
@@ -1345,7 +1343,7 @@ impl RemoveJob {
         }
     }
 
-    pub fn gen_meta(&self) -> RemoveJobMeta {
+    pub fn _gen_meta(&self) -> RemoveJobMeta {
         RemoveJobMeta {
             path: self.path.clone(),
             is_remote: self.is_remote,