I am trying to export RAP using build script, but everytime I run the script it only give me an empty jar file there is nothing in the jar file.

Even though it runs successfull.

############################### SETTINGS FOR EXPORT TOOL ##########################
###################################################################################
# FULL PATH  TO ARCHIVE (REQUIRED) :
export.archive.full.path=*******/test.jar
# Identify a Rule-Admin-Product instance by its pzInsKey (EXPORT RAP only)
export.archive.productkey=RULE-ADMIN-PRODUCT TBTESTEXPORT 01.01.01 #20160726T141732.899 GMT
# CLASSES TO INCLUDE (REQUIRED -- if not specifying a product key):
#    classes.included :    classes to include, separate classes by commas
#    included.descendent :    true (include descendents)
#   NOT required if exporting a list of pzInsKeys
export.classes.included=
export.included.descendent=true
# CLASSES TO EXCLUDE  
#     classes.excluded :    classes to exclude, separate classes by commans
#    excluded.descendent :    true (exclude descendents)
#    For example, if including classes with descendants (Rule-) you can use this
#         to filter specific classes
export.classes.excluded=
export.excluded.descendent=true
# RULESET VERSION RANGE :
#  Specifies a minimum RuleSet version for Rule Resolved instances
#  of Rule- (e.g. 05- or 05-01-01)
export.startVersion=
export.endVersion=
#  Full path to a ZIP file containing templates (special circumstances only) 
export.template.file=
#  Full path to a file which contains instances to export 
#     identified by pzInsKey, 1 per line.
#  if exporting a list of pzInsKeys, do not provide other arguments such as export.classes.included
export.keys.file=

# RULESET NAME :
#  Include instances of this RuleSet (for Rule- classes) 
export.ruleset.name=
#  Preserve lock property on checked out instances 
# Only use if moving the corresponding locked instance
export.preserve.locks=false

Result from the script:

 [java] 2016-07-29 14:22:48,942 [         cbsccus484d] [  STANDARD] [                    ] (ary.LibraryFunctionUtilityImpl) ERROR   - Error compiling: com/pegarules/generated/pega_decisionengine_batchdecision; see class's compile log file.
     [java] 2016-07-29 14:22:51,214 [         cbsccus484d] [  STANDARD] [                    ] (internal.library.LibLibraryDef) ERROR   - Library XYZ.XYZ
     [java]  has inconsistent Rule-Utility-Function key / implementation issues.
     [java]  These may be the result of merging the Function from another ruleset.
     [java]  Please resave all prototypes into a higher ruleset and remove the bad functions.   Duplicate instances for function/version: addYearsMonthsDays--(String,int,int) XYZ:01-55-01
     [java]              selecting: (20141231T174656.304 GMT) RULE-UTILITY-FUNCTION XYZ ADDYEARSMONTHSDAYS--(STRING,INT,INT) #20141231T174656.304 GMT
     [java]               ignoring: (20141231T174655.007 GMT) RULE-UTILITY-FUNCTION XYZ ADDYEARSMONTHSDAYS #20141231T174655.006 GMT
     [java] 2016-07-29 14:22:51,214 [         cbsccus484d] [  STANDARD] [                    ] (internal.library.LibLibraryDef) ERROR   - Library XYZ.XYZ
     [java]  has inconsistent Rule-Utility-Function key / implementation issues.
     [java]  These may be the result of merging the Function from another ruleset.
     [java]  Please resave all prototypes into a higher ruleset and remove the bad functions.   Duplicate instances for function/version: addYearsMonthsDays--(String,int,int) XYZ:03-01-01
     [java]              selecting: (20141231T174656.304 GMT) RULE-UTILITY-FUNCTION XYZ ADDYEARSMONTHSDAYS--(STRING,INT,INT) #20150721T212346.372 GMT
     [java]               ignoring: (20141231T174655.007 GMT) RULE-UTILITY-FUNCTION XYZ ADDYEARSMONTHSDAYS #20150721T212346.292 GMT
     [java] 2016-07-29 14:22:51,214 [         cbsccus484d] [  STANDARD] [                    ] (internal.library.LibLibraryDef) ERROR   - Library XYZ.XYZ
     [java]  has inconsistent Rule-Utility-Function key / implementation issues.

[java] Failed to instantiate SLF4J LoggerFactory
     [java] Reported exception:
     [java] java.lang.NoClassDefFoundError: org/apache/log4j/Level
     [java]     at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)

 [java] 2016-07-29 14:25:30,392 [         cbsccus484d] [  STANDARD] [     PegaRULES:06.02] (s.DeclarativePageDirectoryImpl) ERROR JSR94|Deployment|Utility|pxExportApp|AA40B8EFF7A817ED5E6165DBA2A8914D1  - Error during load of declarative page Declare_SAMLEnv
     [java] com.pega.pegarules.pub.PRRuntimeException: Error loading Declare_SAMLEnv with definition RULE-DECLARE-PAGES DECLARE_SAMLENV #20150721T211948.358 GMT using activity {pyClassName=XYZ-Env-GlobalResSettings-SAMLLoad-, pxObjClass=Rule-Obj-Activity, pyActivityName=LoadSAMLEnv}

     [java] 2016-07-29 12:38:21,846 [         *****] [          ] [                    ] (         internal.util.MoveLog) INFO    - Operation Status: Constructing export file -- please wait......
     [java] 2016-07-29 12:38:21,860 [         *****] [          ] [                    ] (      internal.util.ExportImpl) INFO    - Export complete.

-cleanup:
     [echo] Cleaning up temp directory...
   [delete] Deleting directory *******/tmp/PegaInstallTemp-29-July-2016-12.33.26

exportRAP:
     [echo] PegaRULES Process Commander Export Application Archive complete.

BUILD SUCCESSFUL
Total time: 4 minutes 57 seconds

***Updated by Moderator: Vidyaranjan. Removed user added #helpme tag. Apologies for confusion, shouldn't have been an end-user option***