diff --git a/src/MeoAssistance/AsstMsg.h b/src/MeoAssistance/AsstMsg.h
index fda50725b8..5c41e7643e 100644
--- a/src/MeoAssistance/AsstMsg.h
+++ b/src/MeoAssistance/AsstMsg.h
@@ -28,6 +28,7 @@ namespace asst {
 		PrintWindow,						// 截图消息
 		ProcessTaskStopAction,				// 流程任务执行到了Stop的动作
 		TaskChainCompleted,					// 任务链完成
+		ProcessTaskNotMatched,				// 流程任务识别错误
 		/* Info Msg: about Identify */
 		TextDetected = 2000,				// 识别到文字
 		ImageFindResult,					// 查找图像的结果
@@ -67,6 +68,7 @@ namespace asst {
 			{AsstMsg::TaskChainCompleted, "TaskChainCompleted"},
 			{AsstMsg::PrintWindow, "PrintWindow"},
 			{AsstMsg::TaskError, "TaskError"},
+			{AsstMsg::ProcessTaskNotMatched, "ProcessTaskNotMatched"},
 			{AsstMsg::ProcessTaskStopAction, "ProcessTaskStopAction"},
 			{AsstMsg::TextDetected, "TextDetected"},
 			{AsstMsg::RecruitTagsDetected, "RecruitTagsDetected"},
diff --git a/src/MeoAssistance/ProcessTask.cpp b/src/MeoAssistance/ProcessTask.cpp
index a92f2805d3..00db9c0ba3 100644
--- a/src/MeoAssistance/ProcessTask.cpp
+++ b/src/MeoAssistance/ProcessTask.cpp
@@ -34,6 +34,7 @@ bool ProcessTask::run()
 	Rect rect;
 	task_info_ptr = match_image(&rect);
 	if (!task_info_ptr) {
+		m_callback(AsstMsg::ProcessTaskNotMatched, task_start_json, m_callback_arg);
 		return false;
 	}
 
@@ -134,6 +135,7 @@ std::shared_ptr<TaskInfo> ProcessTask::match_image(Rect* matched_rect)
 {
 	const cv::Mat& cur_image = m_controller_ptr->get_image();
 	if (cur_image.empty() || cur_image.rows < 100) {
+		m_callback(AsstMsg::ImageIsEmpty, json::value(), m_callback_arg);
 		return nullptr;
 	}
 
diff --git a/src/MeoAssistance/WinMacro.cpp b/src/MeoAssistance/WinMacro.cpp
index a88de13b1a..a3dbbd7611 100644
--- a/src/MeoAssistance/WinMacro.cpp
+++ b/src/MeoAssistance/WinMacro.cpp
@@ -340,10 +340,14 @@ bool asst::WinMacro::screencap()
 	auto data = call_command(m_emulator_info.adb.screencap);
 	if (!data.empty()) {
 		m_cache_image = cv::imdecode(data, cv::IMREAD_COLOR);
+		if (m_cache_image.empty()) {
+			DebugTraceError("Data is not empty, but image is empty!");
+			return false;
+		}
 		return true;
 	}
 	else {
-		DebugTraceError("Screencap is empty!");
+		DebugTraceError("Data is empty!");
 		return false;
 	}