notification-templates was either missing or disabled

[Joe Rowe]

when sending a user invitation email,there was an error:

[common.error.jersey.ThrowableExceptionMapper] toResponse Uncaught exception thrown by REST service: Unable to compile Soy templates at: com.atlassian.confluence.plugins.confluence-email-resources:notification-templates
-- referer: http://wiki.nic.hdu.edu.cn/admin/users/inviteuser.action | url: /rest/easyuser/latest/sendUserInvites | userName: admin
com.atlassian.confluence.renderer.template.TemplateRenderingException: Unable to compile Soy templates at: com.atlassian.confluence.plugins.confluence-email-resources:notification-templates

Caused by: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.IllegalStateException: Required plugin module com.atlassian.confluence.plugins.confluence-email-resources:notification-templates was either missing or disabled

Caused by: java.lang.IllegalStateException: Required plugin module com.atlassian.confluence.plugins.confluence-email-resources:notification-templates was either missing or disabled

[Nic Brough -Adaptavist-]

Could you check

1. The list of enabled system add-ons to see if there are any partially or totally disabled in there
2. The log file at start up - any warnings or errors about not being able to load stuff