Mysql upgraded from 5.7 to 8.0 and Sonarqube 7.8 not starting GUI

SonarQube 7.8 doesn’t work with MySQL file, as described in the default sonar.properties file:

#----- MySQL >=5.6 && <8.0

Source: sonarqube/sonar-application/src/main/assembly/conf/sonar.properties at 870ae4efbf5dcdbe59295eb5827b55a6a74c7b89 · SonarSource/sonarqube · GitHub

Also note: End of Life of MySQL Support