With Magnolia 5.7 it is currently impossible to create a custom webapp with the Standard Templating Kit (STK) due to module dependency conflicts. If you rely on a webapp with the STK, use Magnolia 5.6.x. See the following link:
Standard Templating Kit (STK) deprecation (September 15, 2017)
The Standard Templating Kit (STK) was deprecated on September 15, 2017 and reached end of life on December 31, 2018.
The replacement for STK is Magnolia Templating Kit (MTK), first released with Magnolia 5.4 on July 3, 2015. MTK is quicker to learn than STK and requires fewer skills. MTK is aimed at the increasing number of front-end developers who looked for something leaner and less time-consuming. MTE is front-end framework agnostic, which means you can integrate it with any modern framework such as Bootstrap or Foundation.
- 2009: First release
- 2015: Maintenance mode
- 2017: Deprecation
- 2018: End of life
With the the release of Magnolia 5.6 we have stopped producing preconfigured bundles and webapps with the STK based demo. If your still rely on STK, you can use it. However, you have to build a bundle or webapp with STK yourself.