编译期间已经存在的程序类型 [英] Program type already present during compile

问题描述

在构建期间，我有一些奇怪的情况. 这是消息:

I have some strange situation during build time. Here is message:

程序类型已经存在:org.simpleframework.xml.Attribute

Program type already present: org.simpleframework.xml.Attribute

dependencies {
    implementation 'com.android.support:multidex:1.0.1'
    implementation 'com.android.support:appcompat-v7:25.4.0'
    implementation 'com.google.android.gms:play-services:11.8.0'
    implementation 'com.google.gms:google-services:3.3.1'
    implementation 'com.facebook.fresco:fresco:0.6.0'

    implementation files('libs/activation.jar')
    implementation files('libs/additionnal.jar')
    implementation files('libs/mail.jar')

    implementation project(':CouponingModule')
    implementation 'com.google.firebase:firebase-messaging:11.8.0'
    // https://mvnrepository.com/artifact/org.simpleframework/simple-xml
    implementation('org.simpleframework:simple-xml:2.7.1') {
        exclude group: 'stax', module: 'stax-api'
        exclude group: 'xpp3', module: 'xpp3'
    }
}

推荐答案

原因是某些库具有相似的依赖关系，因此编译器无法选择适当的依赖关系.

The reason is that some libraries have similar dependencies, therefore the compiler can not choose the appropriate one.

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