MobileFirst Proguard возвращен с кодом ошибки 1. См. Console java.lang.ClassCastException

Question

Я получаю это исключение при попытке создать подписанный apk моего примера приложения.

любезно поможет мне решить эту проблему.

Я обновил последние версии 7.1.0.0-MFPF-StudioP2-IF201607111057 в MobileFirst 7.1.

[2016-07-29 13:16:13 - samAPPSampleAndroid] Proguard returned with error code 1. See console  
[2016-07-29 13:16:13 - samAPPSampleAndroid] Note: there were 2641 duplicate class definitions. 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  You should check if you need to specify additional program jars. 
[2016-07-29 13:16:13 - samAPPSampleAndroid] java.lang.ClassCastException: java.lang.Object cannot be cast to java.lang.String 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.obfuscate.MemberObfuscator.newMemberName(MemberObfuscator.java:198) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.obfuscate.MemberNameCollector.visitAnyMember(MemberNameCollector.java:74) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.util.SimplifiedVisitor.visitProgramMember(SimplifiedVisitor.java:79) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.util.SimplifiedVisitor.visitProgramMethod(SimplifiedVisitor.java:91) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.visitor.MemberAccessFilter.visitProgramMethod(MemberAccessFilter.java:90) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.ProgramMethod.accept(ProgramMethod.java:71) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.ProgramClass.methodsAccept(ProgramClass.java:504) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.visitor.AllMemberVisitor.visitProgramClass(AllMemberVisitor.java:48) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.ProgramClass.accept(ProgramClass.java:346) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.ProgramClass.hierarchyAccept(ProgramClass.java:359) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.LibraryClass.hierarchyAccept(LibraryClass.java:371) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.ProgramClass.hierarchyAccept(ProgramClass.java:416) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.visitor.ClassHierarchyTraveler.visitProgramClass(ClassHierarchyTraveler.java:75) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.visitor.MultiClassVisitor.visitProgramClass(MultiClassVisitor.java:85) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.ProgramClass.accept(ProgramClass.java:346) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.classfile.ClassPool.classesAccept(ClassPool.java:116) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.obfuscate.Obfuscator.execute(Obfuscator.java:217) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.ProGuard.obfuscate(ProGuard.java:333) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.ProGuard.execute(ProGuard.java:135) 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  at proguard.ProGuard.main(ProGuard.java:492) 

Project.Properties

# This file is automatically generated by Android Tools. 
# Do not modify this file -- YOUR CHANGES WILL BE ERASED! 
# 
# This file must be checked in Version Control Systems. 
# 
# To customize properties used by the Ant build system use, 
# "build.properties", and override values to adapt the script to your 
# project structure. 

# Indicates whether an apk should be generated for each density. split.density=false 
# Project target. target=android-21 

# Uncomment the line below to enable Android Proguard proguard.config=proguard-project.txt 

Answer 1

Helo Криш,

Прежде всего, обратите внимание на это предупреждение. Это очень важно, что вы держите код упорядоченными и аккуратным и имеющих дубликаты

Proguard returned with error code 1. See console  
[2016-07-29 13:16:13 - samAPPSampleAndroid] Note: there were 2641 duplicate class definitions. 
[2016-07-29 13:16:13 - samAPPSampleAndroid]  You should check if you need to specify additional program jars. 

относительно этой ошибки, есть строка в вашем проекте, где вы литье/обработке объекта в виде строки и Proguard просто не в состоянии для решения этой проблемы

[2016-07-29 13:16:13 - samAPPSampleAndroid] java.lang.ClassCastException: java.lang.Object cannot be cast to java.lang.String 

Проверьте свой код на предмет возможных ошибок и примените его.
Также, check this other post related to a Proguard ClassCastException