diff --git a/agent/internal/services/mq/cache.go b/agent/internal/services/mq/cache.go
index 13f6e57..9441b2b 100644
--- a/agent/internal/services/mq/cache.go
+++ b/agent/internal/services/mq/cache.go
@@ -147,9 +147,9 @@ func (svc *Service) WaitCacheMovePackage(msg *agtmq.WaitCacheMovePackage) (*agtm
 				errMsg = tsk.Error().Error()
 			}
 
-			return mq.ReplyOK(agtmq.NewWaitCacheMovePackageResp(true, errMsg, nil))
+			return mq.ReplyOK(agtmq.NewWaitCacheMovePackageResp(true, errMsg, mvPkgTask.ResultCacheInfos))
 		}
 
-		return mq.ReplyOK(agtmq.NewWaitCacheMovePackageResp(false, "", mvPkgTask.ResultCacheInfos))
+		return mq.ReplyOK(agtmq.NewWaitCacheMovePackageResp(false, "", nil))
 	}
 }
diff --git a/agent/internal/task/cache_move_package.go b/agent/internal/task/cache_move_package.go
index 1be99e3..c7c121b 100644
--- a/agent/internal/task/cache_move_package.go
+++ b/agent/internal/task/cache_move_package.go
@@ -71,6 +71,7 @@ func (t *CacheMovePackage) do(ctx TaskContext) error {
 	if pkgResp.Redundancy.IsRepInfo() {
 		return t.moveRep(ctx, coorCli, pkgResp.Package)
 	} else {
+		return fmt.Errorf("not implement yet!")
 		// TODO EC的CacheMove逻辑
 	}
 
diff --git a/agent/main.go b/agent/main.go
index 188c850..f6d4ad5 100644
--- a/agent/main.go
+++ b/agent/main.go
@@ -69,9 +69,10 @@ func main() {
 	if err != nil {
 		log.Fatalf("new agent server failed, err: %s", err.Error())
 	}
-	agtSvr.OnError = func(err error) {
+	agtSvr.OnError(func(err error) {
 		log.Warnf("agent server err: %s", err.Error())
-	}
+	})
+
 	go serveAgentServer(agtSvr, &wg)
 
 	go reportStatus(&wg) //网络延迟感知
diff --git a/common/pkgs/mq/agent/server.go b/common/pkgs/mq/agent/server.go
index b2e6dd0..8819c17 100644
--- a/common/pkgs/mq/agent/server.go
+++ b/common/pkgs/mq/agent/server.go
@@ -18,8 +18,6 @@ type Service interface {
 type Server struct {
 	service   Service
 	rabbitSvr mq.RabbitMQServer
-
-	OnError func(err error)
 }
 
 func NewServer(svc Service, id int64, cfg *mymq.Config) (*Server, error) {
@@ -51,6 +49,10 @@ func (s *Server) Serve() error {
 	return s.rabbitSvr.Serve()
 }
 
+func (s *Server) OnError(callback func(error)) {
+	s.rabbitSvr.OnError = callback
+}
+
 var msgDispatcher mq.MessageDispatcher = mq.NewMessageDispatcher()
 
 // Register 将Service中的一个接口函数作为指定类型消息的处理函数，同时会注册请求和响应的消息类型
diff --git a/common/pkgs/mq/coordinator/server.go b/common/pkgs/mq/coordinator/server.go
index 437a3f9..76b57a7 100644
--- a/common/pkgs/mq/coordinator/server.go
+++ b/common/pkgs/mq/coordinator/server.go
@@ -27,8 +27,6 @@ type Service interface {
 type Server struct {
 	service   Service
 	rabbitSvr mq.RabbitMQServer
-
-	OnError func(err error)
 }
 
 func NewServer(svc Service, cfg *mymq.Config) (*Server, error) {
@@ -59,6 +57,10 @@ func (s *Server) Serve() error {
 	return s.rabbitSvr.Serve()
 }
 
+func (s *Server) OnError(callback func(error)) {
+	s.rabbitSvr.OnError = callback
+}
+
 var msgDispatcher mq.MessageDispatcher = mq.NewMessageDispatcher()
 
 // Register 将Service中的一个接口函数作为指定类型消息的处理函数，同时会注册请求和响应的消息类型
diff --git a/common/pkgs/mq/scanner/event.go b/common/pkgs/mq/scanner/event.go
index 09b0ba0..bc1238a 100644
--- a/common/pkgs/mq/scanner/event.go
+++ b/common/pkgs/mq/scanner/event.go
@@ -29,7 +29,3 @@ func NewPostEvent(event scevt.Event, isEmergency bool, dontMerge bool) *PostEven
 func (client *Client) PostEvent(msg *PostEvent) error {
 	return mq.Send(Service.PostEvent, client.rabbitCli, msg)
 }
-
-func init() {
-	mq.RegisterUnionType(scevt.EventTypeUnino)
-}
diff --git a/common/pkgs/mq/scanner/event/agent_check_cache.go b/common/pkgs/mq/scanner/event/agent_check_cache.go
index a050647..08b241a 100644
--- a/common/pkgs/mq/scanner/event/agent_check_cache.go
+++ b/common/pkgs/mq/scanner/event/agent_check_cache.go
@@ -1,5 +1,7 @@
 package event
 
+var _ = Register[*AgentCheckCache]()
+
 type AgentCheckCache struct {
 	EventBase
 	NodeID     int64    `json:"nodeID"`
@@ -12,7 +14,3 @@ func NewAgentCheckCache(nodeID int64, fileHashes []string) *AgentCheckCache {
 		FileHashes: fileHashes,
 	}
 }
-
-func init() {
-	Register[AgentCheckCache]()
-}
diff --git a/common/pkgs/mq/scanner/event/agent_check_state.go b/common/pkgs/mq/scanner/event/agent_check_state.go
index c369735..54b9741 100644
--- a/common/pkgs/mq/scanner/event/agent_check_state.go
+++ b/common/pkgs/mq/scanner/event/agent_check_state.go
@@ -1,5 +1,7 @@
 package event
 
+var _ = Register[*AgentCheckState]()
+
 type AgentCheckState struct {
 	EventBase
 	NodeID int64 `json:"nodeID"`
@@ -10,7 +12,3 @@ func NewAgentCheckState(nodeID int64) *AgentCheckState {
 		NodeID: nodeID,
 	}
 }
-
-func init() {
-	Register[AgentCheckState]()
-}
diff --git a/common/pkgs/mq/scanner/event/agent_check_storage.go b/common/pkgs/mq/scanner/event/agent_check_storage.go
index a7fe7e1..3c971f2 100644
--- a/common/pkgs/mq/scanner/event/agent_check_storage.go
+++ b/common/pkgs/mq/scanner/event/agent_check_storage.go
@@ -1,5 +1,7 @@
 package event
 
+var _ = Register[*AgentCheckStorage]()
+
 type AgentCheckStorage struct {
 	EventBase
 	StorageID  int64   `json:"storageID"`
@@ -12,7 +14,3 @@ func NewAgentCheckStorage(storageID int64, packageIDs []int64) *AgentCheckStorag
 		PackageIDs: packageIDs,
 	}
 }
-
-func init() {
-	Register[AgentCheckStorage]()
-}
diff --git a/common/pkgs/mq/scanner/event/check_cache.go b/common/pkgs/mq/scanner/event/check_cache.go
index ffb9278..3325a0b 100644
--- a/common/pkgs/mq/scanner/event/check_cache.go
+++ b/common/pkgs/mq/scanner/event/check_cache.go
@@ -1,5 +1,7 @@
 package event
 
+var _ = Register[*CheckCache]()
+
 type CheckCache struct {
 	EventBase
 	NodeID int64 `json:"nodeID"`
@@ -10,7 +12,3 @@ func NewCheckCache(nodeID int64) *CheckCache {
 		NodeID: nodeID,
 	}
 }
-
-func init() {
-	Register[CheckCache]()
-}
diff --git a/common/pkgs/mq/scanner/event/check_package.go b/common/pkgs/mq/scanner/event/check_package.go
index 842a893..526dda0 100644
--- a/common/pkgs/mq/scanner/event/check_package.go
+++ b/common/pkgs/mq/scanner/event/check_package.go
@@ -1,5 +1,7 @@
 package event
 
+var _ = Register[*CheckPackage]()
+
 type CheckPackage struct {
 	EventBase
 	PackageIDs []int64 `json:"packageIDs"`
@@ -10,7 +12,3 @@ func NewCheckPackage(packageIDs []int64) *CheckPackage {
 		PackageIDs: packageIDs,
 	}
 }
-
-func init() {
-	Register[CheckPackage]()
-}
diff --git a/common/pkgs/mq/scanner/event/check_rep_count.go b/common/pkgs/mq/scanner/event/check_rep_count.go
index d393cb1..39f2c74 100644
--- a/common/pkgs/mq/scanner/event/check_rep_count.go
+++ b/common/pkgs/mq/scanner/event/check_rep_count.go
@@ -1,5 +1,7 @@
 package event
 
+var _ = Register[*CheckRepCount]()
+
 type CheckRepCount struct {
 	EventBase
 	FileHashes []string `json:"fileHashes"`
@@ -10,7 +12,3 @@ func NewCheckRepCount(fileHashes []string) *CheckRepCount {
 		FileHashes: fileHashes,
 	}
 }
-
-func init() {
-	Register[CheckRepCount]()
-}
diff --git a/common/pkgs/mq/scanner/event/event.go b/common/pkgs/mq/scanner/event/event.go
index 0eafbd7..8fc6578 100644
--- a/common/pkgs/mq/scanner/event/event.go
+++ b/common/pkgs/mq/scanner/event/event.go
@@ -1,6 +1,7 @@
 package event
 
 import (
+	"gitlink.org.cn/cloudream/common/pkgs/mq"
 	"gitlink.org.cn/cloudream/common/pkgs/types"
 	myreflect "gitlink.org.cn/cloudream/common/utils/reflect"
 )
@@ -15,6 +16,13 @@ type EventBase struct{}
 
 func (e *EventBase) Noop() {}
 
-func Register[T any]() {
+// 注：此函数必须以var _ = Register[xxx]()的形式被调用，这样才能保证init中RegisterUnionType时
+// TypeUnion不是空的。（因为包级变量初始化比init函数调用先进行）
+func Register[T Event]() any {
 	EventTypeUnino.Add(myreflect.TypeOf[T]())
+	return nil
+}
+
+func init() {
+	mq.RegisterUnionType(EventTypeUnino)
 }
diff --git a/common/pkgs/mq/scanner/server.go b/common/pkgs/mq/scanner/server.go
index 73fd65f..8219519 100644
--- a/common/pkgs/mq/scanner/server.go
+++ b/common/pkgs/mq/scanner/server.go
@@ -12,8 +12,6 @@ type Service interface {
 type Server struct {
 	service   Service
 	rabbitSvr mq.RabbitMQServer
-
-	OnError func(err error)
 }
 
 func NewServer(svc Service, cfg *mymq.Config) (*Server, error) {
@@ -45,6 +43,10 @@ func (s *Server) Serve() error {
 	return s.rabbitSvr.Serve()
 }
 
+func (s *Server) OnError(callback func(error)) {
+	s.rabbitSvr.OnError = callback
+}
+
 var msgDispatcher mq.MessageDispatcher = mq.NewMessageDispatcher()
 
 // Register 将Service中的一个接口函数作为指定类型消息的处理函数，同时会注册请求和响应的消息类型
diff --git a/coordinator/main.go b/coordinator/main.go
index 7474169..ced3f98 100644
--- a/coordinator/main.go
+++ b/coordinator/main.go
@@ -40,9 +40,9 @@ func main() {
 		logger.Fatalf("new coordinator server failed, err: %s", err.Error())
 	}
 
-	coorSvr.OnError = func(err error) {
+	coorSvr.OnError(func(err error) {
 		logger.Warnf("coordinator server err: %s", err.Error())
-	}
+	})
 
 	// 启动服务
 	go serveCoorServer(coorSvr)
diff --git a/magefiles/main.go b/magefiles/main.go
index bd70eb4..b1fa0db 100644
--- a/magefiles/main.go
+++ b/magefiles/main.go
@@ -69,8 +69,13 @@ func Scripts() error {
 	scriptsDir := "./common/assets/scripts"
 
 	info, err := os.Stat(scriptsDir)
-	if errors.Is(err, os.ErrNotExist) || !info.IsDir() {
-		return fmt.Errorf("script directory not exists or is not a directory")
+	if errors.Is(err, os.ErrNotExist) {
+		fmt.Printf("no scripts.\n")
+		return nil
+	}
+
+	if !info.IsDir() {
+		return fmt.Errorf("scripts is not a directory")
 	}
 
 	fullDirPath, err := filepath.Abs(filepath.Join(BuildDir, "scripts"))
@@ -87,8 +92,13 @@ func Confs() error {
 	confDir := "./common/assets/confs"
 
 	info, err := os.Stat(confDir)
-	if errors.Is(err, os.ErrNotExist) || !info.IsDir() {
-		return fmt.Errorf("conf directory not exists or is not a directory")
+	if errors.Is(err, os.ErrNotExist) {
+		fmt.Printf("no confs.\n")
+		return nil
+	}
+
+	if !info.IsDir() {
+		return fmt.Errorf("confs is not a directory")
 	}
 
 	fullDirPath, err := filepath.Abs(filepath.Join(BuildDir, "confs"))
@@ -106,7 +116,7 @@ func Agent() error {
 		OutputName: "agent",
 		OutputDir:  "agent",
 		AssetsDir:  "assets",
-		EntryFile:"agent/main.go",
+		EntryFile:  "agent/main.go",
 	})
 }
 
@@ -115,7 +125,7 @@ func Client() error {
 		OutputName: "client",
 		OutputDir:  "client",
 		AssetsDir:  "assets",
-		EntryFile:"client/main.go",
+		EntryFile:  "client/main.go",
 	})
 }
 
@@ -124,7 +134,7 @@ func Coordinator() error {
 		OutputName: "coordinator",
 		OutputDir:  "coordinator",
 		AssetsDir:  "assets",
-		EntryFile:"coordinator/main.go",
+		EntryFile:  "coordinator/main.go",
 	})
 }
 
@@ -133,6 +143,6 @@ func Scanner() error {
 		OutputName: "scanner",
 		OutputDir:  "scanner",
 		AssetsDir:  "assets",
-		EntryFile:"scanner/main.go",
+		EntryFile:  "scanner/main.go",
 	})
 }
diff --git a/scanner/internal/event/agent_check_cache.go b/scanner/internal/event/agent_check_cache.go
index 8500776..a838d50 100644
--- a/scanner/internal/event/agent_check_cache.go
+++ b/scanner/internal/event/agent_check_cache.go
@@ -170,5 +170,5 @@ func (t *AgentCheckCache) startCheck(execCtx ExecuteContext, isComplete bool, ca
 }
 
 func init() {
-	RegisterMessageConvertor(func(msg scevt.AgentCheckCache) Event { return NewAgentCheckCache(msg.NodeID, msg.FileHashes) })
+	RegisterMessageConvertor(func(msg *scevt.AgentCheckCache) Event { return NewAgentCheckCache(msg.NodeID, msg.FileHashes) })
 }
diff --git a/scanner/internal/event/agent_check_state.go b/scanner/internal/event/agent_check_state.go
index de59a4c..314059f 100644
--- a/scanner/internal/event/agent_check_state.go
+++ b/scanner/internal/event/agent_check_state.go
@@ -113,5 +113,5 @@ func (t *AgentCheckState) Execute(execCtx ExecuteContext) {
 }
 
 func init() {
-	RegisterMessageConvertor(func(msg scevt.AgentCheckState) Event { return NewAgentCheckState(msg.NodeID) })
+	RegisterMessageConvertor(func(msg *scevt.AgentCheckState) Event { return NewAgentCheckState(msg.NodeID) })
 }
diff --git a/scanner/internal/event/agent_check_storage.go b/scanner/internal/event/agent_check_storage.go
index ada76b9..26670c9 100644
--- a/scanner/internal/event/agent_check_storage.go
+++ b/scanner/internal/event/agent_check_storage.go
@@ -195,5 +195,5 @@ func (t *AgentCheckStorage) startCheck(execCtx ExecuteContext, stg model.Storage
 }
 
 func init() {
-	RegisterMessageConvertor(func(msg scevt.AgentCheckStorage) Event { return NewAgentCheckStorage(msg.StorageID, msg.PackageIDs) })
+	RegisterMessageConvertor(func(msg *scevt.AgentCheckStorage) Event { return NewAgentCheckStorage(msg.StorageID, msg.PackageIDs) })
 }
diff --git a/scanner/internal/event/check_cache.go b/scanner/internal/event/check_cache.go
index 89dbec5..fd3c594 100644
--- a/scanner/internal/event/check_cache.go
+++ b/scanner/internal/event/check_cache.go
@@ -80,5 +80,5 @@ func (t *CheckCache) Execute(execCtx ExecuteContext) {
 }
 
 func init() {
-	RegisterMessageConvertor(func(msg scevt.CheckCache) Event { return NewCheckCache(msg.NodeID) })
+	RegisterMessageConvertor(func(msg *scevt.CheckCache) Event { return NewCheckCache(msg.NodeID) })
 }
diff --git a/scanner/internal/event/check_package.go b/scanner/internal/event/check_package.go
index 0a5bc91..8f2c653 100644
--- a/scanner/internal/event/check_package.go
+++ b/scanner/internal/event/check_package.go
@@ -53,5 +53,5 @@ func (t *CheckPackage) Execute(execCtx ExecuteContext) {
 }
 
 func init() {
-	RegisterMessageConvertor(func(msg scevt.CheckPackage) Event { return NewCheckPackage(msg.PackageIDs) })
+	RegisterMessageConvertor(func(msg *scevt.CheckPackage) Event { return NewCheckPackage(msg.PackageIDs) })
 }
diff --git a/scanner/internal/event/check_rep_count.go b/scanner/internal/event/check_rep_count.go
index 78fb874..72f5f44 100644
--- a/scanner/internal/event/check_rep_count.go
+++ b/scanner/internal/event/check_rep_count.go
@@ -211,5 +211,5 @@ func chooseDeleteAvaiRepNodes(allNodes []model.Node, curAvaiRepNodes []model.Nod
 }
 
 func init() {
-	RegisterMessageConvertor(func(msg scevt.CheckRepCount) Event { return NewCheckRepCount(msg.FileHashes) })
+	RegisterMessageConvertor(func(msg *scevt.CheckRepCount) Event { return NewCheckRepCount(msg.FileHashes) })
 }
diff --git a/scanner/internal/event/event.go b/scanner/internal/event/event.go
index 27a1aba..2533ade 100644
--- a/scanner/internal/event/event.go
+++ b/scanner/internal/event/event.go
@@ -36,7 +36,7 @@ var msgDispatcher = typedispatcher.NewTypeDispatcher[Event]()
 func FromMessage(msg scevt.Event) (Event, error) {
 	event, ok := msgDispatcher.Dispatch(msg)
 	if !ok {
-		return nil, fmt.Errorf("unknow event message type: %s", reflect.TypeOf(msg).Name())
+		return nil, fmt.Errorf("unknow event message type: %s", reflect.TypeOf(msg).String())
 	}
 
 	return event, nil
diff --git a/scanner/main.go b/scanner/main.go
index 173af98..ca659b4 100644
--- a/scanner/main.go
+++ b/scanner/main.go
@@ -53,9 +53,10 @@ func main() {
 	if err != nil {
 		logger.Fatalf("new agent server failed, err: %s", err.Error())
 	}
-	agtSvr.OnError = func(err error) {
+	agtSvr.OnError(func(err error) {
 		logger.Warnf("agent server err: %s", err.Error())
-	}
+	})
+
 	go serveScannerServer(agtSvr, &wg)
 
 	tickExecutor := tickevent.NewExecutor(tickevent.ExecuteArgs{