Upgrade problem from 7 .7 to 8.0 / com.vaadin.DefaultWidgetSet.nocache.js

Vaadin 6 / 7 / 8
1

Changed in pom.xml version of “vaadin-spring-boot-starter” to 2.0.0 and project upgraded to Vaadin 8.0

Opens white page with message “Failed to load the widgetset: ./VAADIN/widgetsets/com.vaadin.DefaultWidgetSet/com.vaadin.DefaultWidgetSet.nocache.js?1487928644656”

In console message:
Requested resource
[/VAADIN/widgetsets/com.vaadin.DefaultWidgetSet/com.vaadin.DefaultWidgetSet.nocache.js] not found from filesystem or through class loader. Add widgetset and/or theme JAR to your classpath or add files to WebContent/VAADIN folder.

2

Sorry, my problem, true configuration:

org.springframework.boot
spring-boot-starter-parent
1.5.1.RELEASE

Without version:

vaadin-spring-boot-starter
com.vaadin

and vaadin 8.0.0 on borad!