diff --git a/src/main/java/a8k/service/appctrl/CondtionMgrService.java b/src/main/java/a8k/service/appctrl/CondtionMgrService.java
index 8a498f6..19001bf 100644
--- a/src/main/java/a8k/service/appctrl/CondtionMgrService.java
+++ b/src/main/java/a8k/service/appctrl/CondtionMgrService.java
@@ -42,7 +42,7 @@ public class CondtionMgrService {
 	}
 
 	public Boolean isCanDoAction() {
-		return gstate.mainFlowCtrlState.workState.equals(A8kWorkState.WORKING) && !gstate.mainFlowCtrlState.errorFlag;
+		return gstate.mainFlowCtrlState.workState.equals(A8kWorkState.WORKING) && !gstate.mainFlowCtrlState.errorFlag  && !gstate.mainFlowCtrlState.workStateChangeFlag;
 	}
 
 
diff --git a/src/main/java/a8k/service/appctrl/action/ctrl/DO_CLEAR_ERROR.java b/src/main/java/a8k/service/appctrl/action/ctrl/DO_CLEAR_ERROR.java
new file mode 100644
index 0000000..412c5ea
--- /dev/null
+++ b/src/main/java/a8k/service/appctrl/action/ctrl/DO_CLEAR_ERROR.java
@@ -0,0 +1,58 @@
+package a8k.service.appctrl.action.ctrl;
+
+import a8k.service.appctrl.action.base.A8kActionStepType;
+import a8k.service.appctrl.action.base.A8kStepAction;
+import a8k.service.appstate.GStateService;
+import a8k.service.appstate.resource.A8kPublicResourceType;
+import a8k.service.appstate.type.MainFlowCtrlState;
+import a8k.service.appstate.type.state.A8kWorkState;
+import a8k.service.devicedriver.ctrl.SampleScanTransportCtrl;
+import a8k.type.exception.AppException;
+import jakarta.annotation.PostConstruct;
+import jakarta.annotation.Resource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@Component
+public class DO_CLEAR_ERROR extends A8kStepAction {
+	static Logger logger = LoggerFactory.getLogger(DO_CLEAR_ERROR.class);
+
+	DO_CLEAR_ERROR() {
+		super(A8kActionStepType.DO_PAUSE);
+	}
+
+	@Resource
+	GStateService gstate;
+
+	MainFlowCtrlState mfcs;
+
+	@PostConstruct
+	void init() {
+		mfcs = gstate.mainFlowCtrlState;
+	}
+
+	@Override public void doaction() throws AppException {
+
+		//ProcessErrorBeforeContinue
+
+
+		mfcs.errorFlag = false;
+		mfcs.ecodeList.clear();
+
+	}
+
+	@Override public Boolean checkCondition() {
+		Boolean cond1 = mfcs.workStateChangeFlag;
+		Boolean cond2 = mfcs.errorFlag;
+		Boolean cond3 = mfcs.workState.equals(A8kWorkState.WORKING);
+		Boolean cond4 = mfcs.lastWorkState.equals(A8kWorkState.PAUSE) || mfcs.lastWorkState.equals(A8kWorkState.IDLE);
+		return cond1 && cond2 && cond3 && cond4;
+	}
+
+	@Override public List<A8kPublicResourceType> getResourceList() {
+		return List.of();
+	}
+}
diff --git a/src/main/java/a8k/service/appctrl/action/ctrl/DO_PAUSE.java b/src/main/java/a8k/service/appctrl/action/ctrl/DO_PAUSE.java
index c82d1e2..235aac3 100644
--- a/src/main/java/a8k/service/appctrl/action/ctrl/DO_PAUSE.java
+++ b/src/main/java/a8k/service/appctrl/action/ctrl/DO_PAUSE.java
@@ -4,6 +4,7 @@ import a8k.service.appctrl.action.base.A8kActionStepType;
 import a8k.service.appctrl.action.base.A8kStepAction;
 import a8k.service.appstate.GStateService;
 import a8k.service.appstate.resource.A8kPublicResourceType;
+import a8k.service.appstate.type.MainFlowCtrlState;
 import a8k.service.appstate.type.state.A8kWorkState;
 import a8k.service.devicedriver.ctrl.SampleScanTransportCtrl;
 import a8k.type.exception.AppException;
@@ -26,22 +27,22 @@ public class DO_PAUSE extends A8kStepAction {
 	@Resource
 	GStateService gstate;
 
-	@Resource
-	SampleScanTransportCtrl sampleScanTransportCtrl;
+	MainFlowCtrlState mfcs;
 
 	@PostConstruct
 	void init() {
+		mfcs = gstate.mainFlowCtrlState;
 	}
 
 	@Override public void doaction() throws AppException {
-		gstate.mainFlowCtrlState.workStateChangeFlag = false;
+		mfcs.workStateChangeFlag = false;
 	}
 
 	@Override public Boolean checkCondition() {
-		Boolean cond1 = gstate.mainFlowCtrlState.workStateChangeFlag;
-		Boolean cond2 = gstate.mainFlowCtrlState.lastWorkState.equals(A8kWorkState.WORKING);
-		Boolean cond3 = gstate.mainFlowCtrlState.workState.equals(A8kWorkState.PAUSE);
-		return cond1 & cond2 & cond3;
+		Boolean cond1 = mfcs.workStateChangeFlag && !mfcs.errorFlag;
+		Boolean cond2 = mfcs.lastWorkState.equals(A8kWorkState.WORKING);
+		Boolean cond3 = mfcs.workState.equals(A8kWorkState.PAUSE);
+		return cond1 && cond2 && cond3;
 	}
 
 	@Override public List<A8kPublicResourceType> getResourceList() {
diff --git a/src/main/java/a8k/service/appctrl/action/ctrl/DO_RESUME.java b/src/main/java/a8k/service/appctrl/action/ctrl/DO_RESUME.java
index d4a6cf6..51bf333 100644
--- a/src/main/java/a8k/service/appctrl/action/ctrl/DO_RESUME.java
+++ b/src/main/java/a8k/service/appctrl/action/ctrl/DO_RESUME.java
@@ -4,6 +4,7 @@ import a8k.service.appctrl.action.base.A8kActionStepType;
 import a8k.service.appctrl.action.base.A8kStepAction;
 import a8k.service.appstate.GStateService;
 import a8k.service.appstate.resource.A8kPublicResourceType;
+import a8k.service.appstate.type.MainFlowCtrlState;
 import a8k.service.appstate.type.state.A8kWorkState;
 import a8k.type.exception.AppException;
 import jakarta.annotation.PostConstruct;
@@ -25,19 +26,22 @@ public class DO_RESUME extends A8kStepAction {
 	@Resource
 	GStateService gstate;
 
+	MainFlowCtrlState mfcs;
+
 	@PostConstruct
 	void init() {
+		mfcs = gstate.mainFlowCtrlState;
 	}
 
 	@Override public void doaction() throws AppException {
-		gstate.mainFlowCtrlState.workStateChangeFlag = false;
+		mfcs.workStateChangeFlag = false;
 	}
 
 	@Override public Boolean checkCondition() {
-		Boolean cond1 = gstate.mainFlowCtrlState.workStateChangeFlag;
-		Boolean cond2 = gstate.mainFlowCtrlState.lastWorkState.equals(A8kWorkState.PAUSE);
-		Boolean cond3 = gstate.mainFlowCtrlState.workState.equals(A8kWorkState.WORKING);
-		return cond1 & cond2 & cond3;
+		Boolean cond1 = mfcs.workStateChangeFlag;
+		Boolean cond2 = mfcs.lastWorkState.equals(A8kWorkState.PAUSE);
+		Boolean cond3 = mfcs.workState.equals(A8kWorkState.WORKING);
+		return cond1 && cond2 && cond3;
 	}
 
 	@Override public List<A8kPublicResourceType> getResourceList() {
diff --git a/src/main/java/a8k/service/appctrl/action/ctrl/DO_START.java b/src/main/java/a8k/service/appctrl/action/ctrl/DO_START.java
index 5af4213..fd3bde8 100644
--- a/src/main/java/a8k/service/appctrl/action/ctrl/DO_START.java
+++ b/src/main/java/a8k/service/appctrl/action/ctrl/DO_START.java
@@ -4,6 +4,7 @@ import a8k.service.appctrl.action.base.A8kActionStepType;
 import a8k.service.appctrl.action.base.A8kStepAction;
 import a8k.service.appstate.GStateService;
 import a8k.service.appstate.resource.A8kPublicResourceType;
+import a8k.service.appstate.type.MainFlowCtrlState;
 import a8k.service.appstate.type.state.A8kWorkState;
 import a8k.service.devicedriver.ctrl.SampleScanTransportCtrl;
 import a8k.type.exception.AppException;
@@ -29,23 +30,23 @@ public class DO_START extends A8kStepAction {
 	@Resource
 	SampleScanTransportCtrl sampleScanTransportCtrl;
 
+	MainFlowCtrlState mfcs;
 
 	@PostConstruct
 	void init() {
-
+		mfcs = gstate.mainFlowCtrlState;
 	}
 
-
 	@Override public void doaction() throws AppException {
-		gstate.mainFlowCtrlState.workStateChangeFlag = false;
+		mfcs.workStateChangeFlag = false;
 		sampleScanTransportCtrl.ejectTubeHolder();
 	}
 
 	@Override public Boolean checkCondition() {
-		Boolean cond1 = gstate.mainFlowCtrlState.workStateChangeFlag;
-		Boolean cond2 = gstate.mainFlowCtrlState.lastWorkState.equals(A8kWorkState.IDLE);
-		Boolean cond3 = gstate.mainFlowCtrlState.workState.equals(A8kWorkState.WORKING);
-		return cond1 & cond2 & cond3;
+		Boolean cond1 = mfcs.workStateChangeFlag;
+		Boolean cond2 = mfcs.lastWorkState.equals(A8kWorkState.IDLE);
+		Boolean cond3 = mfcs.workState.equals(A8kWorkState.WORKING);
+		return cond1 && cond2 && cond3;
 	}
 
 	@Override public List<A8kPublicResourceType> getResourceList() {
diff --git a/src/main/java/a8k/service/appctrl/action/ctrl/DO_STOP.java b/src/main/java/a8k/service/appctrl/action/ctrl/DO_STOP.java
index b4064bb..d203e0e 100644
--- a/src/main/java/a8k/service/appctrl/action/ctrl/DO_STOP.java
+++ b/src/main/java/a8k/service/appctrl/action/ctrl/DO_STOP.java
@@ -4,6 +4,7 @@ import a8k.service.appctrl.action.base.A8kActionStepType;
 import a8k.service.appctrl.action.base.A8kStepAction;
 import a8k.service.appstate.GStateService;
 import a8k.service.appstate.resource.A8kPublicResourceType;
+import a8k.service.appstate.type.MainFlowCtrlState;
 import a8k.service.appstate.type.state.A8kWorkState;
 import a8k.type.exception.AppException;
 import jakarta.annotation.PostConstruct;
@@ -25,20 +26,22 @@ public class DO_STOP extends A8kStepAction {
 	@Resource
 	GStateService gstate;
 
+	MainFlowCtrlState mfcs;
+
 	@PostConstruct
 	void init() {
+		mfcs = gstate.mainFlowCtrlState;
 	}
 
-
 	@Override public void doaction() throws AppException {
-		gstate.mainFlowCtrlState.workStateChangeFlag = false;
+		mfcs.workStateChangeFlag = false;
 	}
 
 	@Override public Boolean checkCondition() {
-		Boolean cond1 = gstate.mainFlowCtrlState.workStateChangeFlag;
-		Boolean cond2 = gstate.mainFlowCtrlState.lastWorkState.equals(A8kWorkState.WORKING) || gstate.mainFlowCtrlState.lastWorkState.equals(A8kWorkState.PAUSE);
-		Boolean cond3 = gstate.mainFlowCtrlState.workState.equals(A8kWorkState.IDLE);
-		return cond1 & cond2 & cond3;
+		Boolean cond1 = mfcs.workStateChangeFlag;
+		Boolean cond2 = mfcs.lastWorkState.equals(A8kWorkState.WORKING) || mfcs.lastWorkState.equals(A8kWorkState.PAUSE);
+		Boolean cond3 = mfcs.workState.equals(A8kWorkState.IDLE);
+		return cond1 && cond2 && cond3;
 	}
 
 	@Override public List<A8kPublicResourceType> getResourceList() {
diff --git a/src/main/java/a8k/service/appctrl/action/mainflow/SEQ7_EJECT_TUBEHOLDER.java b/src/main/java/a8k/service/appctrl/action/mainflow/SEQ7_EJECT_TUBEHOLDER.java
index 5e40c7b..2ea9e84 100644
--- a/src/main/java/a8k/service/appctrl/action/mainflow/SEQ7_EJECT_TUBEHOLDER.java
+++ b/src/main/java/a8k/service/appctrl/action/mainflow/SEQ7_EJECT_TUBEHOLDER.java
@@ -52,7 +52,7 @@ public class SEQ7_EJECT_TUBEHOLDER extends A8kStepAction {
 		Boolean cond1 = cms.isCanDoAction();
 		Boolean cond2 = gstate.getTubeHolder().state.equals(TubeHolderState.PROCESSING);
 		Boolean cond3 = cms.isNoMoreTubeToBeProcessed();
-		return cond1 & cond2 & cond3;
+		return cond1 && cond2 && cond3;
 	}
 
 	@Override public List<A8kPublicResourceType> getResourceList() {
diff --git a/src/main/java/a8k/service/appctrl/scheduler/MainFlowCtrlScheduler.java b/src/main/java/a8k/service/appctrl/scheduler/MainFlowCtrlScheduler.java
index 93de5c8..510c6d4 100644
--- a/src/main/java/a8k/service/appctrl/scheduler/MainFlowCtrlScheduler.java
+++ b/src/main/java/a8k/service/appctrl/scheduler/MainFlowCtrlScheduler.java
@@ -93,11 +93,6 @@ public class MainFlowCtrlScheduler {
 		workThread.start();
 	}
 
-
-	public void setClearErrorPendingFlag() {
-		clearErrorPendingFlag = true;
-	}
-
 	public List<A8kStepAction> getA8kStepActionList() {
 		return stepActionList;
 	}
@@ -150,23 +145,23 @@ public class MainFlowCtrlScheduler {
 		}
 	}
 
-	void clearError() {
-		/*
-		 * 清除错误
-		 */
-		clearErrorPendingFlag = false;
-		try {
-			beforeDoWhat(A8kActionStepType.DO_CLEAR_ERROR);
-			boolean suc = ecodeClearProcesser.process(state.ecodeList);
-			if (suc) {
-				state.ecodeList.clear();
-				state.errorFlag = false;
-			}
-		} catch (AppException appe) {
-			A8kErrorContext context = new A8kErrorContext(A8kActionStepType.DO_CLEAR_ERROR, appe.error);
-			a8kEcodePostProcesser(List.of(context));
-		}
-	}
+//	void clearError() {
+//		/*
+//		 * 清除错误
+//		 */
+//		clearErrorPendingFlag = false;
+//		try {
+//			beforeDoWhat(A8kActionStepType.DO_CLEAR_ERROR);
+//			boolean suc = ecodeClearProcesser.process(state.ecodeList);
+//			if (suc) {
+//				state.ecodeList.clear();
+//				state.errorFlag = false;
+//			}
+//		} catch (AppException appe) {
+//			A8kErrorContext context = new A8kErrorContext(A8kActionStepType.DO_CLEAR_ERROR, appe.error);
+//			a8kEcodePostProcesser(List.of(context));
+//		}
+//	}
 
 
 	List<A8kErrorContext> waitAllActionIsDone(List<Future<A8kErrorContext>> futureList) {