Cannot read properties of undefined (reading 'setCssClass') (frontmatter issue?)

[iynaityu]

What I’m trying to do

After updating to the latest release, Obsidian failed to open all of my files except for canvas. The error message says: Failed to load ‘’<filename.md>‘’. Cannot read properties of undefined (reading ‘setCssClass’).

Almost all of my notes have frontmatter such as

---
aliases:
updated: 
created: 
tags: 
status: 
---

Here’s the error from Console

TypeError: Cannot read properties of undefined (reading 'setCssClass')
    at t.loadFrontmatter (app.js:1:2087082)
    at t.setViewData (app.js:1:2087881)
    at t.setData (app.js:1:1823571)
    at t.<anonymous> (app.js:1:1823474)
    at app.js:1:237030
    at Object.next (app.js:1:237135)
    at a (app.js:1:235853)

Things I have tried

I have turned on Restricted mode and I am using only the default style. Also tried reinstalling previous releases and restarted my laptop. Still the same error message. Please help! Thanks!

[CawlinTeffid]

I don’t know what that means, but you might try copying your notes (without the .obsidian folder) into a new vault to see if that helps.

[domagoj]

I have the same issue.

I worked through everything and tracked it down my issue to the app.json and ultimately it was the legacy editor setting.

I don’t remember why I enabled legacy editor, but once I turned off Settings >> Editor >> Use Legacy Editor and restarted everything worked again.

I guess the method for showing frontmatter using the legacy editor is broken in the newer vetsion.

[Shades]

I also saw this and it’s really unfortunate, because I’m not a fan of the new editor. I want to have the source editor just being a plain editor. Not showing bigger fonts if it’s #### and so on. That should only be in the Live Preview view. Give me a plain monspaced editor.

[ariehen]

@Shades

I want to have the source editor just being a plain editor. Not showing bigger fonts if it’s #### and so on. That should only be in the Live Preview view. Give me a plain monspaced editor.

Give this snippet a spin. You can use the entire thing or pick out pieces that you’d like. It’s still missing a few edge cases, but it’s fairly barebones.

MarkGone: Get rid of that pesky MD styling

Tired of ~~ striking out your text? Why on earth would you want ## h2s to be bigger than #### h4s? Your #tags getting a little round in the mid-section? Why do those [[links]] have a color anyway? Who wants that? Well, this snippet is for you. I present to you: MarkGone Like Dignam in The Departed, MarkGone is a ghost in the wind waiting for you when come home with the groceries. No, it’s not that. Just kidding. I imagine it sporting a slick track-suit though. A few folks: Plugin/theme for …

[Shades]

Thx! How do I get the font smaller and another color though? I would like to have it the same as the metadata like creation date and modification date.

[ariehen]

For the body font and size, add color and font-size to this section

/*- monospace font for source mode -*/
.markdown-source-view:not(.is-live-preview) .cm-scroller {
    --font-text: 'JetBrains Mono', var(--font-monospace);
    color: blue;
    font-size: 14px; }

You may need to add color in other places to take care of code blocks, callouts, etc. If you have any other questions, feel free to @ me in the MarkGone thread so we don’t clutter this one up.

[jmacwilkins]

that worked for me, thx