Blueprint not working

I’ve spent nearly two hours trying to add a headline to my Panel. The Blueprint / Panel works without the headline, but not with it. I’ve tried using the PHP debug but I didn’t understand it. Any help gratefully received!

title: Site

columns:
	pages:
		width: 1/1
		sections:
			section_1:
				type: pages
				status: listed
				image: icon
				label: Main pages
				sortable: false

	heading1:
		width: 1/1
			sections:
				section_2:
					type: fields
					fields:
						heading_1:
							type: headline
							label: Autumn term

	autumn_term_starts:
		width: 1/2
		sections:
			section_3:
				type: fields
				fields:
					autumn_term_1_begins:
						label: Autumn term 1 begins
						type: date
					autumn_term_2_begins:
						label: Autumn term 2 begins
						type: date

	autumn_term_ends:
		width: 1/2
		sections:
			section_4:
				type: fields
				fields:
					autumn_term_1_ends:
						label: Autumn term 1 ends
						type: date
					autumn_term_2_ends:
						label: Autumn term 2 ends
						type: date

Make sure to get the indentation right,

This here looks wrong, sections should be right under width, like in the first column.

Use yaml support in your IDE, so errors are shown.

Thank you so much!!! That’s great. Trumpets playing!

I’m using Sublime Text to write code. Is that an IDE? It doesn’t show yaml errors be default. I’ve had a quick look at their docs and don’t really understand if it’s possible to get Sublime Text to show yaml errors.

Not familiar with Sublime text, but pretty sure if you google yaml syntax highlighting sublime text (or ask chatgpt) you will find something.

I’m finding lots of stuff, but understanding it is a different matter!

Thanks

Sublime Text automatically recognizes the syntax. However, errors are not recognized by default. It may be possible to extend the range of functions with plug-ins, but I couldn’t find anything suitable.