Not all users will want the contacts module installed in their system just because they use stk module. It should be optional.

Problems

When contacts-app is not installed:

• The field found here: /modules/standard-templating-kit/dialogs/components/teasers/stkTeaserContact/form/tabs/tabTeaser/fields/contact/contentPreviewDefinition has a contentPreviewDefinition property pointing to info.magnolia.contacts.app.field.component.ContactPreviewComponent and will create a CNF exception.
• The workspace contacts won't be found

Possible solutions

1. Make stkTeaserContact template and dialog a part of the contacts-app.
2. Have (multiple) conditional bootstrap tasks (in stk + demo-project) that only install dialogs/components/content when contacts-app is installed

Demo contents that use stkTeaserContact

Those contents might have to be ordered upon boostrap.

4 nodes returned in 10ms
/demo-features/aggregation-paragraphs/contact-paragraph/content/0
/demo-project/news-and-events/extras/extras1/00
/demo-features/aggregation-paragraphs/contact-paragraph/extras/extras1/0
/demo-project/news-and-events/news-overview/extras/extras1/0

Be aware of possible migration.