URL Rewriter NoClassDefFoundError on Hippo CMS 10

After adding URL Rewriter to a Hippo 10 project, the following errors appear on startup:

[INFO] [talledLocalContainer] 17.06.2015 14:29:37 WARN localhost-startStop-1 [Modules.<init>:105] Cannot instantiate module class org.onehippo.forge.rewriting.updater.UrlRewriter_1_04_UpdaterPhaseA: java.lang.NoClassDefFoundError: org/hippoecm/repository/ext/UpdaterModule
[INFO] [talledLocalContainer] 17.06.2015 14:29:37 WARN localhost-startStop-1 [Modules.<init>:105] Cannot instantiate module class org.onehippo.forge.rewriting.updater.UrlRewriter_1_04_UpdaterPhaseB: java.lang.NoClassDefFoundError: org/hippoecm/repository/ext/UpdaterModule
[INFO] [talledLocalContainer] 17.06.2015 14:29:37 WARN localhost-startStop-1 [Modules.<init>:105] Cannot instantiate module class org.onehippo.forge.rewriting.updater.UrlRewriter_1_04_UpdaterPhaseC: java.lang.NoClassDefFoundError: org/hippoecm/repository/ext/UpdaterModule
[INFO] [talledLocalContainer] 17.06.2015 14:29:37 WARN localhost-startStop-1 [Modules.<init>:105] Cannot instantiate module class org.onehippo.forge.rewriting.updater.UrlRewriter_1_04_UpdaterPhaseD: java.lang.NoClassDefFoundError: org/hippoecm/repository/ext/UpdaterModule
[INFO] [talledLocalContainer] 17.06.2015 14:29:56 WARN localhost-startStop-1 [Modules.<init>:105] Cannot instantiate module class org.onehippo.forge.rewriting.updater.UrlRewriter_1_04_UpdaterPhaseA: java.lang.NoClassDefFoundError: org/hippoecm/repository/ext/UpdaterModule
[INFO] [talledLocalContainer] 17.06.2015 14:29:56 WARN localhost-startStop-1 [Modules.<init>:105] Cannot instantiate module class org.onehippo.forge.rewriting.updater.UrlRewriter_1_04_UpdaterPhaseB: java.lang.NoClassDefFoundError: org/hippoecm/repository/ext/UpdaterModule
[INFO] [talledLocalContainer] 17.06.2015 14:29:56 WARN localhost-startStop-1 [Modules.<init>:105] Cannot instantiate module class org.onehippo.forge.rewriting.updater.UrlRewriter_1_04_UpdaterPhaseC: java.lang.NoClassDefFoundError: org/hippoecm/repository/ext/UpdaterModule
[INFO] [talledLocalContainer] 17.06.2015 14:29:56 WARN localhost-startStop-1 [Modules.<init>:105] Cannot instantiate module class org.onehippo.forge.rewriting.updater.UrlRewriter_1_04_UpdaterPhaseD: java.lang.NoClassDefFoundError: org/hippoecm/repository/ext/UpdaterModule

The UpdaterModule class does not appear to be part of Hippo 10 or any of the dependencies referenced by the URL Rewriter module.

This is especially important because the URL Rewriter plugin is the only supported way to rewriter URLs in Hippo OnDemand.