android {
    ...
    compileOptions {
        sourceCompatibility = 1.8
        targetCompatibility = 1.8
    }

    kotlinOptions {
        jvmTarget = “1.8”
    }
}

2.2 Unable to find EOCD signature 

现象1

Execution failed for task ‘:app:packagexxxxRelease’.
> A failure occurred while executing com.android.build.gradle.internal.tasks.WorkersKaTeX parse error: Expected 'EOF', got '&' at position 17: …ctionFacade<br>&̲nbsp; &nbsp;&gt…ActionFacade
   > java.lang.IllegalArgumentException (no error message)

原因

依赖中添加了有关ABI相关的配置，打包输出时，未指定ABI版本

解决办法（添加ABI输出）

import com.android.build.OutputFile

static def releaseTime() {
  

    return new Date().format(“yyyyMMdd”, TimeZone.getTimeZone(“GMT+8”))

}

buildTypes {
  

        release {
  

            minifyEnabled true

            shrinkResources true

            proguardFiles getDefaultProguardFile(‘proguard-android.txt’), ‘proguard-rules.pro’

            applicationVariants.all { variant ->

                variant.outputs.all { output ->

                    project.ext { appName = ‘YourApkName’ }

                    outputFileName = "$appName-${output.getFilter(OutputFile.ABI)}-$variant.name-${variant.versionName}.apk

                }
            }
        }
    }

2.3 failed to read PNG signature: file does not start with PNG signature 

现象

AAPT: error: failed to read PNG signature: file does not start with PNG signature.

解决办法

在app/build.gradle文件中加以下代码后，重构项目

android {
  

    compileSdkVersion 28

    flavorDimensions “mode”

    aaptOptions.cruncherEnabled = false

    aaptOptions.useNewCruncher = false

    defaultConfig {
  

    

    }

2.4 Android Gradle plugin requires Java 11 to run. You are currently using Java 1.8 

现象(项目创建时)

An exception occurred applying plugin request [id: ‘com.android.application’]
> Failed to apply plugin ‘com.android.internal.application’.
   > Android Gradle plugin requires Java 11 to run. You are currently using Java 1.8.
     You can try some of the following options:
       - changing the IDE settings.
       - changing the JAVA_HOME environment variable.
       - changing org.gradle.java.home in gradle.properties.

解决办法

依次点击：File——>Project Struct——>SDK Location——>JDK location was moved to Gradle Settings，在打开的对话框中，将Gradle JDK修改为11

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”

四 工具类 

4.1 Task list not build

现象

解决办法

1. 点击Task list not build，进入Settings——>Experimental，将Do not build Gradle task list duraing Gradle sync前面的勾选去掉，并应用

2. 点击Sync Project with Gradle Files同步一下项目