Code sample in "Developing Your First Spring Boot Application" does not work

[tehnodev]

MyApplication.java example code do not work without package declaration. spring-boot:run command shows

...
** WARNING ** : Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package.
...
Caused by: java.lang.IllegalStateException: Could not evaluate condition on org.springframework.boot.autoconfigure.r2dbc.ConnectionFactoryConfigurations$PoolConfiguration due to io/r2dbc/spi/ValidationDepth not found. Make sure your own configuration does not rely on that class. This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)
...

[bclozel]

In which package is your main application located? The error message seems to indicate that it is using an invalid location.

Can you share a sample application showing the problem?

[tehnodev]

No package. File is located as stated in documentation at src/main/java/MyApplication.java

Application sample is copy-paste from documentation file MyApplication.java

[tehnodev]

I suggest to change file location to src/main/java/example/MyApplication.java and add "package example;" at the top of example file

[petrovskimario]

Has this been picked up by anyone ? If not i can pick this up