Error in CustomExceptionHandler.java

[ninjachen]

I use the ./quick-start.sh to build, but got a error cannot find JsonMapper.

Full error log is here

[INFO] 13 errors 
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.600 s
[INFO] Finished at: 2018-03-19T15:29:34+08:00
[INFO] Final Memory: 29M/328M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project boot-api: Compilation failure: Compilation failure:
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/support/CustomExceptionHandler.java:[19,43] package org.springside.modules.utils.mapper does not exist
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/support/CustomExceptionHandler.java:[29,17] cannot find symbol
[ERROR] symbol:   class JsonMapper
[ERROR] location: class org.springside.examples.bootapi.api.support.CustomExceptionHandler
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/BookEndpoint.java:[23,43] package org.springside.modules.utils.mapper does not exist
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/support/ErrorPageController.java:[18,43] package org.springside.modules.utils.mapper does not exist
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/support/ErrorPageController.java:[34,17] cannot find symbol
[ERROR] symbol:   class JsonMapper
[ERROR] location: class org.springside.examples.bootapi.api.support.ErrorPageController
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/support/CustomExceptionHandler.java:[29,45] cannot find symbol
[ERROR] symbol:   class JsonMapper
[ERROR] location: class org.springside.examples.bootapi.api.support.CustomExceptionHandler
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/BookEndpoint.java:[45,24] cannot find symbol
[ERROR] symbol:   variable BeanMapper
[ERROR] location: class org.springside.examples.bootapi.api.BookEndpoint
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/BookEndpoint.java:[52,24] cannot find symbol
[ERROR] symbol:   variable BeanMapper
[ERROR] location: class org.springside.examples.bootapi.api.BookEndpoint
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/BookEndpoint.java:[63,29] cannot find symbol
[ERROR] symbol:   variable BeanMapper
[ERROR] location: class org.springside.examples.bootapi.api.BookEndpoint
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/BookEndpoint.java:[74,29] cannot find symbol
[ERROR] symbol:   variable BeanMapper
[ERROR] location: class org.springside.examples.bootapi.api.BookEndpoint
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/BookEndpoint.java:[130,24] cannot find symbol
[ERROR] symbol:   variable BeanMapper
[ERROR] location: class org.springside.examples.bootapi.api.BookEndpoint
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/BookEndpoint.java:[139,24] cannot find symbol
[ERROR] symbol:   variable BeanMapper
[ERROR] location: class org.springside.examples.bootapi.api.BookEndpoint
[ERROR] /Some/path/springside4/examples/boot-api/src/main/java/org/springside/examples/bootapi/api/support/ErrorPageController.java:[34,45] cannot find symbol
[ERROR] symbol:   class JsonMapper
[ERROR] location: class org.springside.examples.bootapi.api.support.ErrorPageController