---
title: Troubleshooting
---

Common issues and solutions when working with Quartz.

## Build Errors

### `Could not resolve ...` or missing module errors

This usually means a plugin is not installed. Run:

```bash
npx quartz plugin install
```

This restores all plugins from your `quartz.lock.json` to `.quartz/plugins/`.

### `tsc` type errors after updating

After running `npx quartz upgrade`, type errors can occur if the update changed internal APIs that your `quartz.ts` overrides depend on. Check the changelog for breaking changes and update your overrides accordingly.

### Build is slow

Try increasing concurrency:

```bash
npx quartz build --concurrency 8
# or the shorthand:
npx quartz build -c 8
```

The default uses all available CPU cores. If you're on a memory-constrained environment (CI), reducing concurrency may actually help.

## Plugin Issues

### Plugin not loading after installation

1. Verify the plugin appears in `quartz.config.yaml` under `plugins:`
2. Check that `enabled: true` is set
3. Run `npx quartz plugin list` to confirm it's installed
4. Run `npx quartz plugin install --latest --dry-run` to verify plugin health

### Plugin options not taking effect

Make sure your YAML indentation is correct. Options must be nested under the plugin entry:

```yaml title="quartz.config.yaml"
plugins:
  - source: github:quartz-community/some-plugin
    enabled: true
    options:
      myOption: value # correct: nested under options
```

A common mistake is putting options at the wrong indentation level.

### `ExternalPlugin.X is not a function`

This means the plugin is referenced in `quartz.ts` but not installed. Either:

- Install it: `npx quartz plugin add github:quartz-community/plugin-name`
- Or remove the reference from `quartz.ts`

### Plugins fail to build on a fresh clone

On a brand-new clone, `npx quartz plugin install` (or the plugin step run automatically by `npx quartz create`) may report a handful of plugins failing to build — typically around 10–15 of them. The git clone and checkout still succeed, but `npm run build` inside the plugin errors out.

This happens because `quartz.lock.json` pins each plugin to a specific commit, and those older plugin commits may have been authored against earlier versions of `@quartz-community/types` / `@quartz-community/utils` whose published artifacts are no longer shipped in the dependency's git repo. The plugin's `tsup`/`tsc` build then cannot resolve the expected type declarations.

Fix it by refreshing all plugins to the latest commit on their default branch:

```bash
npx quartz plugin install --latest
```

This rewrites `quartz.lock.json` with the newest commits (which in turn pin newer `@quartz-community/*` versions whose built output is available), and rebuilds every plugin from scratch. After this step, subsequent `npx quartz plugin install` calls will restore cleanly from the refreshed lockfile.

### `plugin install` hangs, OOMs, or fails on low-end hardware

By default, `npx quartz plugin install` clones, fetches, and builds plugins in parallel across all your CPU cores. Each parallel worker may run its own `npm install` and `npm run build`, which is memory-intensive. On low-end laptops, Raspberry Pi, small VPS instances, or restrictive CI runners this can exhaust RAM, trigger the OOM killer, or make the system appear to hang.

Lower the parallelism with `--concurrency` / `-c`:

```bash
# Install one plugin at a time (safest, slowest)
npx quartz plugin install --latest -c 1

# Two at a time — usually works on 4 GB machines
npx quartz plugin install --latest --concurrency 2
```

The same flag works for `plugin add` and the deprecated aliases (`plugin update`, `plugin restore`, `plugin check`, `plugin resolve`):

```bash
npx quartz plugin add github:quartz-community/some-plugin -c 1
```

If `plugin install` consistently fails near the same plugin with `-c 1`, the issue is likely with that specific plugin's build, not with concurrency — try running `--verbose` to get detailed error output, and check the plugin's own repository for known issues.

## Content Issues

### Notes not showing up

- Check that the file is in the `content/` folder
- Check that `draft: true` is not set in the frontmatter (the [[RemoveDrafts]] plugin filters these out)
- If using [[ExplicitPublish]], make sure `publish: true` is set in frontmatter
- Check your [[configuration]] `ignorePatterns` to make sure the file path is not excluded

### Wikilinks not resolving

- Make sure the [[ObsidianFlavoredMarkdown]] plugin is enabled
- Verify the target note exists in your content folder
- Check for case sensitivity issues in filenames

### Images not displaying

- Ensure images are in a folder that Quartz processes (typically `content/` or a subfolder)
- Check that the image path in your Markdown matches the actual file location
- The [[Assets]] emitter must be enabled (it is by default)

## GitHub Sync Issues

### `fatal: --[no-]autostash option is only valid with --rebase`

You may have an outdated version of `git`. Update git to resolve this.

### `fatal: The remote end hung up unexpectedly`

This is usually due to Git's default buffer size being too small for your content. Increase it:

```bash
git config http.postBuffer 524288000
```

### Merge conflicts during sync

If `npx quartz sync` encounters merge conflicts:

1. Resolve the conflicts in your editor
2. Run `git add .` and `git commit` to complete the merge
3. Run `npx quartz sync --no-pull` to push

If you want to start over, run `npx quartz restore` to recover your content from the cache.

## Development Server Issues

### Hot reload not working

- Make sure you're using `--serve` mode: `npx quartz build --serve`
- Check that port 3001 (WebSocket) is not blocked — this is the default `--wsPort` used for hot reload notifications
- If developing remotely, use `--remoteDevHost` to set the correct WebSocket URL

### Port already in use

Change the port:

```bash
npx quartz build --serve --port 3000
```

## Still stuck?

- Check the [GitHub Issues](https://github.com/jackyzha0/quartz/issues) for similar problems
- Ask in the [Discord Community](https://discord.gg/cRFFHYye7t)
- Run your command with `--verbose` for more detailed error output
