Failed to ugrade a Spring Boot app to Flyway 7.0.0

Question

I'm trying to upgrade my Spring Boot 2.3.4 app to use Flyway 7.0.0 (the latest version). Previously it was using Flyway 6.5.6. The relevant entries in build.gradle are shown below.

buildscript {
  ext {
    flywayVersion = "7.0.0" // changed from 6.5.6
  }
}

plugins {
  id "org.flywaydb.flyway" version "${flywayVersion}"
}

dependencies {
  implementation "org.flywaydb:flyway-core:${flywayVersion}"
}

flyway {
  url = "jdbc:postgresql://0.0.0.0:5432/postgres"
  user = "postgres"
  password = "secret"
}

The following error occurs when I start the app e.g. with ./gradlew bootRun

---

APPLICATION FAILED TO START

---

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

org.springframework.boot.autoconfigure.flyway.FlywayMigrationInitializer.afterPropertiesSet(FlywayMigrationInitializer.java:65)

The following method did not exist:

'int org.flywaydb.core.Flyway.migrate()'

The method's class, org.flywaydb.core.Flyway, is available from the following locations:

jar:file:/Users/antonio/.gradle/caches/modules-2/files-2.1/org.flywaydb/flyway-core/7.0.0/623494c303c62080ca1bc5886098ee65d1a5528a/flyway-core-7.0.0.jar!/org/flywaydb/core/Flyway.class

The class hierarchy was loaded from the following locations:

org.flywaydb.core.Flyway: file:/Users/antonio/.gradle/caches/modules-2/files-2.1/org.flywaydb/flyway-core/7.0.0/623494c303c62080ca1bc5886098ee65d1a5528a/flyway-core-7.0.0.jar

Action:

Correct the classpath of your application so that it contains a single, compatible version of org.flywaydb.core.Flyway

Answer 1

Basically, see Philip's comment on your question.

Flyway 7.x.x is not currently compatible with Spring Boot 2.3.4

Temporary solution is to just downgrade to Flyway 6.5.7 (the last 6.x.x version) until Spring Boot 2.3.5 is released.

Read more and follow the issue here: https://github.com/spring-projects/spring-boot/issues/23514

Support for Flyway's new configuration options: https://github.com/spring-projects/spring-boot/issues/23579