Table of contents doesn't work

Question

I'm trying to add a table of contents to a document in Google Docs using Insert > Table of contents menu but it doesn't show any headings.

Here is a sample document: https://docs.google.com/document/d/1jAH3pmeRT2kyqGPOeUA2QaiqEOISNKM678kDx7XeVoQ/edit?usp=sharing

It has a Table of contents on page 1, Chapter 1 on p. 2 and Chapter 2 on p. 3. Chapters paragraph style is set to Title but they don't appear in the table. This is how the table actually looks:

I've pressed refresh button on the left many times - no effect.

I'm using web version of Google Docs. My browser is Google Chrome Version 62.0.3202.75 (Official Build) (64-bit). Cleaning cookies didn't help.

Answer 1

Your Chapter 1 and Chapter 2 have style Title, change that to one of the Headings options (should be in the ribbon just under Tools) and then click on the icon shown at the left in your image.