一 概述

• 开发工具升级，依赖库，运行环境(jdk)等都会造成项目运行出现错误
• 掌握开发中常见错误现象和问题及解决办法，能节省时间
• 本文将不定期更新

二 错误类

2.1 Cannot inline bytecode built with JVM target 1.8

现象

Cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target

解决方案

android {
    ...
    compileOptions {
        sourceCompatibility = 1.8
        targetCompatibility = 1.8
    }
 
    kotlinOptions {
        jvmTarget = "1.8"
    }
}

三 警告类

3.1 The ‘kotlin-android-extensions’ Gradle plugin is deprecated

现象

The 'kotlin-android-extensions' Gradle plugin is deprecated. Please use this migration guide (https://goo.gle/kotlin-android-extensions-deprecation) to start working with View Binding (https://developer.android.com/topic/libraries/view-binding) and the 'kotlin-parcelize' plugin.

解决办法

删除 apply plugin: 'kotlin-android-extensions'
使用binding赋值
binding.name.text = viewModel.nameString

3.2 Warning: Mapping new ns xx/common/02 to old ns xx/common/01

现象

Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01
Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01
Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01
Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01
Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01

解决办法(buildToolsVersion引起-修改前)

compileSdkVersion 30
buildToolsVersion "30.0.3"

去掉buildToolsVersion或将buildToolsVersion版本降低

compileSdkVersion 30
buildToolsVersion "30.0.2"