> For the complete documentation index, see [llms.txt](https://ploegert.gitbook.io/til/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ploegert.gitbook.io/til/programmy/ruby/rexml-is-a-bundled-gem-as-of-ruby-3-0-0.md).

# rexml Is A Bundled Gem As Of Ruby 3.0.0

Are you seeing an error loading certain [`rexml`](https://github.com/ruby/rexml) files?

```
LoadError: cannot load such file -- rexml/document
```

It may be that `rexml` no longer ships as part of the Ruby version you are using. If you are working with Ruby 3.0.0 or later, the `rexml` gem needs to be explicitly installed as it is now a bundled gem.

Either add it to your `Gemfile`:

```
gem 'rexml'
```

or install it manually with:

```bash
$ gem install rexml
```

[source](https://stackoverflow.com/questions/65479863/rails-6-1-what-is-preventing-tests-from-running)