From 169a7d0df90ce109705c558d0feabbebdae73fcd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E6=99=AF=E9=98=B3?= <1656488874@qq.com>
Date: Thu, 26 Sep 2019 16:49:01 +0800
Subject: [PATCH] =?UTF-8?q?fix=20=E5=8F=AF=E8=83=BD=E7=9B=B4=E6=8E=A5?=
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---
 backend/services/task.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/services/task.go b/backend/services/task.go
index e8d66a2a..1c26b45a 100644
--- a/backend/services/task.go
+++ b/backend/services/task.go
@@ -140,7 +140,7 @@ func ExecuteShellCmd(cmdStr string, cwd string, t model.Task, s model.Spider) (e
 		// 传入信号，此处阻塞
 		signal := <-ch
 		log.Infof("cancel process signal: %s", signal)
-		if signal == constants.TaskCancel {
+		if signal == constants.TaskCancel && cmd.Process != nil {
 			// 取消进程
 			if err := cmd.Process.Kill(); err != nil {
 				log.Errorf("process kill error: %s", err.Error())