混淆报错：kotlin.time.jdk8.DurationConversionsJDK8Kt: can‘t find referenced method ‘double getSeconds(lon

混淆问题

问题描述

打包混淆的时候报错：

kotlin.time.jdk8.DurationConversionsJDK8Kt: can't find referenced method 'double getSeconds(long)' in program class kotlin.time.DurationKt

kotlin.time.jdk8.DurationConversionsJDK8Kt: can't find referenced method 'double getNanoseconds(int)' in program class kotlin.time.DurationKt


kotlin.time.jdk8.DurationConversionsJDK8Kt: can't find referenced method 'double plus-LRDsOJo(double,double)' in program class kotlin.time.Duration


kotlin.time.jdk8.DurationConversionsJDK8Kt: can't find referenced method 'double getInSeconds-impl(double)' in program class kotlin.time.Duration


kotlin.time.jdk8.DurationConversionsJDK8Kt: can't find referenced method 'int getNanosecondsComponent-impl(double)' in program class kotlin.time.Duration

Warning: there were 5 unresolved references to program class members.
         Your input classes appear to be inconsistent.
         You may need to recompile the code.
         (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedprogramclassmember)
there were 5 unresolved references to program class members.


> Task :app:minifyReleaseWithProguard FAILED

查问题

全局搜索报错类：DurationConversionsJDK8Kt，搜索项目选择 Scope.

从而找到kt类：DurationConversions.kt，从标题栏可知（见下图），该类来自jar包：org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.20

在Android Studio的Project窗口选择porject视图（见下图）。

打开External Libraries选项（见下图），找到上述的类org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.20。

从下图可以看到，两个不同版本的stdlib，有可能就是找不到对应解析方法的原因。那么现在问题是让这两个版本统一

解决

使用相同版本的stdlib,解决问题。

在build.gradle(App)模块中添加引用：

    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"

在build.gradle(porject)中添加引用

buildscript {
    ext.kotlin_version = '1.5.10'
    repositories {
        //...
    }
    dependencies {
		//...
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}