webprotege-server-api process failure

[mirarabali]

Hi
When I was installing webprotege through mvn clean package there are some error in webprotege-server-api process:
Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project webprotege-server-api: Compilation failure: Compilation failure:
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/shortform/EntityShortFormMatches.java:[25,13] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.shortform.EntityShortFormMatches
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/shortform/ShortFormMatch.java:[30,13] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.shortform.ShortFormMatch
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/entity/SubjectClosureResolver.java:[50,9] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.entity.SubjectClosureResolver
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/entity/SubjectClosureResolver.java:[52,9] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.entity.SubjectClosureResolver
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/entity/SubjectClosureResolver.java:[63,9] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.entity.SubjectClosureResolver
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/entity/SubjectClosureResolver.java:[66,17] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.entity.SubjectClosureResolver
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/entity/SubjectClosureResolver.java:[70,13] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.entity.SubjectClosureResolver
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/OntologyChangeComparator.java:[45,60] cannot infer type arguments for edu.stanford.bmir.protege.web.server.change.OntologyChangeVisitorEx
[ERROR] reason: cannot use '<>' with anonymous inner classes
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/OntologyChangeComparator.java:[82,56] cannot infer type arguments for edu.stanford.bmir.protege.web.server.change.OntologyChangeVisitorEx
[ERROR] reason: cannot use '<>' with anonymous inner classes
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/ChangeListMinimiser.java:[18,9] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.change.ChangeListMinimiser
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/ChangeListMinimiser.java:[19,9] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.change.ChangeListMinimiser
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/ChangeListMinimiser.java:[23,17] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.change.ChangeListMinimiser
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/ChangeListMinimiser.java:[29,17] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.change.ChangeListMinimiser
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/ChangeListMinimiser.java:[38,9] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.change.ChangeListMinimiser
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/ChangeListMinimiser.java:[41,17] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.change.ChangeListMinimiser
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/change/ChangeListMinimiser.java:[48,17] cannot find symbol
[ERROR] symbol: class var
[ERROR] location: class edu.stanford.bmir.protege.web.server.change.ChangeListMinimiser
[ERROR] /C:/Program Files/Apache Software Foundation/Tomcat 10.0/webapps/ROOT/webprotege/webprotege-server-api/src/main/java/edu/stanford/bmir/protege/web/server/shortform/LocalNameExtractor.java:[47,53] incompatible types: java.nio.charset.Charset cannot be converted to java.lang.String
What I have to do?