mvn clean

C:\Users\Admin\core>mvn clean install
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] OpenMRS                                                            [pom]
[INFO] openmrs-tools                                                      [jar]
[INFO] openmrs-test                                                       [pom]
[INFO] openmrs-api                                                        [jar]
[INFO] openmrs-web                                                        [jar]
[INFO] openmrs-webapp                                                     [war]
[INFO]
[INFO] ------------------------< org.openmrs:openmrs >-------------------------
[INFO] Building OpenMRS 2.3.0-SNAPSHOT                                    [1/6]
[INFO] --------------------------------[ pom ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ openmrs ---
[INFO] Deleting C:\Users\Admin\core\target
[INFO]
[INFO] --- buildnumber-maven-plugin:1.1:create (default) @ openmrs ---
[INFO] Checking for local modifications: skipped.
[INFO] Updating project files from SCM: skipped.
[INFO] ShortRevision tag detected. The value is '6'.
[INFO] Executing: cmd.exe /X /C "git rev-parse --verify --short=6 HEAD"
[INFO] Working directory: C:\Users\Admin\core
[INFO] Storing buildNumber: aefddc at timestamp: 1560756744765
[INFO] ShortRevision tag detected. The value is '6'.
[INFO] Executing: cmd.exe /X /C "git rev-parse --verify --short=6 HEAD"
[INFO] Working directory: C:\Users\Admin\core
[INFO] Storing buildScmBranch: UNKNOWN
[INFO]
[INFO] --- build-helper-maven-plugin:1.5:parse-version (parse-version) @ openmrs ---
[INFO]
[INFO] --- maven-jar-plugin:2.3.2:test-jar (default) @ openmrs ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar: C:\Users\Admin\core\target\openmrs-2.3.0-SNAPSHOT-tests.jar
[INFO]
[INFO] --- license-maven-plugin:3.0:check (default) @ openmrs ---
[INFO] Checking licenses...
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) @ openmrs ---
[INFO] Installing C:\Users\Admin\core\pom.xml to C:\Users\Admin\.m2\repository\org\openmrs\openmrs\2.3.0-SNAPSHOT\openmrs-2.3.0-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for OpenMRS 2.3.0-SNAPSHOT:
[INFO]
[INFO] OpenMRS ............................................ FAILURE [ 16.113 s]
[INFO] openmrs-tools ...................................... SKIPPED
[INFO] openmrs-test ....................................... SKIPPED
[INFO] openmrs-api ........................................ SKIPPED
[INFO] openmrs-web ........................................ SKIPPED
[INFO] openmrs-webapp ..................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  16.952 s
[INFO] Finished at: 2019-06-17T10:32:39+03:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-install-plugin:2.4:install (default-install) on project openmrs: Failed to install metadata org.openmrs:openmrs:2.3.0-SNAPSHOT/maven-metadata.xml: Could not parse metadata C:\Users\Admin\.m2\repository\org\openmrs\openmrs\2.3.0-SNAPSHOT\maven-metadata-local.xml: only whitespace content allowed before start tag and not \u0 (position: START_DOCUMENT seen \u0... @1:1)  -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

C:\Users\Admin\core>