From 9daa4dd562958de34cb7fe2c1bde20677ca1a4f4 Mon Sep 17 00:00:00 2001
From: Mufanc <1714511787@qq.com>
Date: Sun, 22 May 2022 14:42:37 +0800
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---
 README.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/README.md b/README.md
index 01d5405..6544775 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,17 @@ py main.py flash -c
 
 ![](images/current_course.png)
 
+### 「父节点不存在」
+
+&emsp;&emsp;由于教材差异，如果你的课程在客户端学习正常，而使用脚本刷课时每个单元都报「父节点不存在」，那么可以将 `spider.py` 119-128 行改成以下内容：
+
+```python
+for task_id in id_record:
+    root.child.append(id_record[task_id])
+```
+
+&emsp;&emsp;将所有任务点直接挂到根节点上
+
 ### 为何关闭 issues
 
 &emsp;&emsp;首先，我要贴上这个：[提问的艺术](https://github.com/betaseeker/How-To-Ask-Questions)