ontroller.java:[70,56] cannot find symbol
  symbol:   method getAvailableExtensions()
  location: variable service of type org.openmrs.module.appframework.service.AppFrameworkService
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Reference Application Module 2.9.0-SNAPSHOT ........ SUCCESS [  4.196 s]
[INFO] Reference Application Module API ................... SUCCESS [ 49.062 s]
[INFO] Reference Application Module OMOD 2.9.0-SNAPSHOT ... FAILURE [ 46.127 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:45 min
[INFO] Finished at: 2018-12-03T11:22:46+03:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project referenceapplication-omod: Compilation failure
[ERROR] /F:/openmrs modules/modules/openmrs-module-referenceapplication/omod/src/main/java/org/openmrs/module/referenceapplication/page/controller/ManageExtensionsPageController.java:[70,56] cannot find symbol
[ERROR]   symbol:   method getAvailableExtensions()
[ERROR]   location: variable service of type org.openmrs.module.appframework.service.AppFrameworkService
[ERROR]
[ERROR] -> [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/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :referenceapplication-omod