One error said a folder could not be located in my vault: “css-snippets”—the error disappeared when I created it, but I’d thought the new (standard) location for code snippets was “.obsidian/snippets,” which already existed…
The other error is odd:
loading plugin
DevTools failed to load SourceMap: Could not parse content for app://obsidian.md/main.js.map: Unexpected end of JSON input
I know I had way too many plugins loaded, but this does not give a plugin name, and I do not know where that file is supposed to be. (It’s not in the app bundle, that I could locate.)