内容：<div class="fix-main clearfix pr" id="fix-main" **_hover-ignore="1"**><a href="/" class="index-logo">标黑代码报错
内容：运行项目报错The view app.views.index didn't return an HttpResponse object. It returned None instead.
内容：报错 In template D:\开发者工具\Python3\lib\site-packages\django-2.2.5-py3.7.egg\django\contrib\admin\templates\admin\includes\fieldset.html, error at line 19 no such table: Learn520App_category 9 {% for field in line %} 10 <div{% if not line.fields|length_is:'1' %} class="fieldBox{% if field.field.name %} field-{{ field.field.name }}{% endif %}{% if not field.is_readonly and field.errors %} errors{% endif %}{% if field.field.is_hidden %} hidden{% endif %}"{% elif field.is_checkbox %} class="checkbox-row"{% endif %}> 11 {% if not line.fields|length_is:'1' and not field.is_readonly %}{{ field.errors }}{% endif %} 12 {% if field.is_checkbox %} 13 {{ field.field }}{{ field.label_tag }} 14 {% else %} 15 {{ field.label_tag }} 16 {% if field.is_readonly %} 17 <div class="readonly">{{ field.contents }}</div> 18 {% else %} 19 {{ field.field }} 20 {% endif %} 21 {% endif %} 22 {% if field.field.help_text %} 23 <div class="help">{{ field.field.help_text|safe }}</div> 24 {% endif %} 25 </div> 26 {% endfor %} 27 </div> 28 {% endfor %} 29 </fieldset> 大佬这个问题应该怎么解决
内容：为什么我报错没有这个表
内容：问题暂时性已解决，pycharm需要运行项目，有更好的办法推荐吗
内容：<div class="fix-main clearfix pr" id="fix-main" **_hover-ignore="1"**><a href="/" class="index-logo">标黑代码报错
内容：运行项目报错The view app.views.index didn't return an HttpResponse object. It returned None instead.
内容：报错 In template D:\开发者工具\Python3\lib\site-packages\django-2.2.5-py3.7.egg\django\contrib\admin\templates\admin\includes\fieldset.html, error at line 19 no such table: Learn520App_category 9 {% for field in line %} 10 <div{% if not line.fields|length_is:'1' %} class="fieldBox{% if field.field.name %} field-{{ field.field.name }}{% endif %}{% if not field.is_readonly and field.errors %} errors{% endif %}{% if field.field.is_hidden %} hidden{% endif %}"{% elif field.is_checkbox %} class="checkbox-row"{% endif %}> 11 {% if not line.fields|length_is:'1' and not field.is_readonly %}{{ field.errors }}{% endif %} 12 {% if field.is_checkbox %} 13 {{ field.field }}{{ field.label_tag }} 14 {% else %} 15 {{ field.label_tag }} 16 {% if field.is_readonly %} 17 <div class="readonly">{{ field.contents }}</div> 18 {% else %} 19 {{ field.field }} 20 {% endif %} 21 {% endif %} 22 {% if field.field.help_text %} 23 <div class="help">{{ field.field.help_text|safe }}</div> 24 {% endif %} 25 </div> 26 {% endfor %} 27 </div> 28 {% endfor %} 29 </fieldset> 大佬这个问题应该怎么解决
内容：为什么我报错没有这个表
内容：问题暂时性已解决，pycharm需要运行项目，有更好的办法推荐吗