[Fixed]-Django Template getting apparent catchall error: "AssertionError at / No exception message supplied" 13 December 2023 by thecoderscamp.com 1👍 ✅ What happens if you simply try {% endif %} instead of {% endif pet.slugline %}? 👤arie Why do balanced Django templating {% if %} and {% endif %} get Invalid block tag on line 50: 'endif', expected 'empty' or 'endfor' Source:stackexchange.com