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Django 3.0 でDjango REST Swaggerを使用すると発生するエラーの解消

Last updated at Posted at 2020-03-10

概要

Django 3.0 で、Django REST Swaggerを使用すると発生するエラーの解消

環境

エラーメッセージ

http://localhost:8000/swagger/ にアクセスすると下記のエラーが発生する

django.template.exceptions.TemplateSyntaxError: 'staticfiles' is not a registered tag library. Must be one of:
admin_list
admin_modify
admin_urls
cache
i18n
l10n
log
rest_framework
static
tz

解消方法

# swagger のhtmlファイルを編集
$ sudo vim /usr/local/lib/python3.6/site-packages/rest_framework_swagger/templates/rest_framework_swagger/index.html

もしswaggerのファイルパスがわからない場合は、grepで調べる
$ sudo grep -rl "staticfiles" /usr/local/lib

Before:

{% load staticfiles %}

After:
2行目を下記の内容に編集

{% load static %}

再度、 http://localhost:8000/swagger/ にアクセスするとつながる。
Django3.0では、'staticfiles' が削除されていることが原因。

公式ドキュメント
https://docs.djangoproject.com/en/dev/releases/3.0/#features-removed-in-3-0

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