AllErrorInOne

 This is because of version mismatch Either add parent of spring in your pom file Or add seperate gson dependency in pom file or add jackson core, annotations etc or, json what ever error is arrived with its own version from maven repo manullay. Its not good idea to depend on spring parent to solve it. < dependency > < groupId >com.fasterxml.jackson.core</ groupId > < artifactId >jackson-annotations</ artifactId > < version >${jackson-version}</ version > </ dependency > < dependency > < groupId >com.google.code.gson</ groupId > < artifactId >gson</ artifactId > < version >${gson-version}</ version > </ dependency >

 https://stackoverflow.com/questions/53034953/error-source-option-5-is-no-longer-supported-use-6-or-later-on-maven-compile

  git config --global credential.helper store This could be the command i am not sure.  https://stackoverflow.com/questions/35942754/how-to-save-username-and-password-in-git

 https://www.baeldung.com/spring-boot-repackage-vs-mvn-package < build > < plugins > < plugin > < groupId >org.springframework.boot</ groupId > < artifactId >spring-boot-maven-plugin</ artifactId > < version >2.5.1</ version > < configuration > < mainClass >com.himal77.ExamPortal</ mainClass > </ configuration > < executions > < execution > < goals > < goal >repackage</ goal > </ goals > </ execution > </ executions > </ plugin > </ plugins > </ build >

  https://www.google.com/settings/security/lesssecureapps Follow this link and turn on

  < script src = " https://code.jquery.com/jquery-3.5.1.min.js " > </ script > https://www.tutorialrepublic.com/faq/how-to-fix-dollar-is-not-defined-error-in-jquery.php The most common reason behind the error "Uncaught ReferenceError: $ is not defined" is executing the jQuery code before the jQuery library file has loaded. 

. antMatchers ( "/user/**" ). hasRole ( "USER" ) This above is the main reason for the error.  This should be changed to    . antMatchers ( "/user/**" ). hasAuthority ( "USER" )

  is = getClass (). getClassLoader (). getResourceAsStream ( "Actuator.config" ); Properties properties = new Properties (); InputStream is ; try { // is = new FileInputStream(filePath); is = getClass (). getClassLoader (). getResourceAsStream ( "Actuator.config" ); properties . load ( is ); } catch ( IOException ex ) { ex . printStackTrace (); } return properties ;