Failed to execute goal org.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project (target 11)

Question

I tried to deploy the simplest app from spring.io guides Guide

But I have some troubles.. What I did:

1. Created project. (from spring.io tutorial)
2. Downloaded heroku CLI
3. Opened terminal in IntellijIdea
   3.1 git init
   3.2 git add .
   3.3 git commit -m "fd"
   3.4 git remote add heroke 'url'
   3.5 git push heroku master
4. After the last command I have this error:

remote:        [INFO] BUILD FAILURE
remote:        [INFO] ------------------------------------------------------------------------
remote:        [INFO] Total time:  12.608 s
remote:        [INFO] Finished at: 2020-01-23T18:20:18Z
remote:        [INFO] ------------------------------------------------------------------------
remote:        [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project milliapp: Fatal error compiling: invalid target release: 11 -> [Help 1]
remote:        [ERROR]
remote:        [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
remote:        [ERROR] Re-run Maven using the -X switch to enable full debug logging.
remote:        [ERROR]
remote:        [ERROR] For more information about the errors and possible solutions, please read the following articles:
remote:        [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
remote:
remote:  !     ERROR: Failed to build app with Maven
remote:        We're sorry this build is failing! If you can't find the issue in application code,
remote:        please submit a ticket so we can help: https://help.heroku.com/
remote:
remote:  !     Push rejected, failed to compile Java app.
remote:
remote:  !     Push failed
remote: Verifying deploy...
remote:
remote: !       Push rejected to deploymilliapp.
remote:
To https://git.heroku.com/deploymilliapp.git
     ! [remote rejected] master -> master (pre-receive hook declined)
    error: failed to push some refs to 'https://git.heroku.com/deploymilliapp.git'

Answer 1

Solved. Deleted this part of code

<properties>
<java.version>11</java.version>