Повторная переработка выполнения цели org.springframework.boot: Spring-Boot-Maven-Plugin: 2.5.0: переупаковка не удалась:
After none of the suggested solutions worked. I figured out there was some issue with the downloaded spring-boot-maven-plugin in the .m2 folder. Deleting the plugin and allowing the "mvn clean install" to re-download and build worked.
Shy Sheep