[填坑系列]Android Studio 3.0配置更改

Android Studio的自带Gradle版本是4.1，插件版本是3.0.0，所以如果你使用的是老版本，就会出现一些小的兼容问题，我们看看报了哪些错误呢：

问题1

Error:(72, 0) Cannot set the value of read-only property 'outputFile' for ApkVariantOutputImpl_Decorated{apkData=Main{type=MAIN, fullName=appDebug, filters=[]}} of type com.android.build.gradle.internal.api.ApkVariantOutputImpl.

outputFile是只读属性，不可以对他进行修改

看一下我的gradle里面的代码：

// 定义生成的apk的名称
def apkName;

buildTypes {
 release {
  ...
  // 定义release版本生成的apk的名字
  apkName = "xxx" + VERSION_NAME + "_release.apk";
 }
 debug {
  ...
  // 定义debug版本生成的apk的名字
  apkName = "ugirls_" + VERSION_NAME + "_debug.apk";
 }
}

// 修改apk build的名字
android.applicationVariants.all { variant ->
 variant.outputs.each { output ->
  def outputFile = output.outputFile
  if (outputFile != null && outputFile.name.endsWith('.apk')) {
    //这里使用之前定义apk文件名称
    output.outputFile = new File(outputFile.parent, apkName)
  }
 }
}

这段代码的功能是修改Build命令生成的apk的名称，因为outputFile变成只读属性，所以报错。

修改后:

// 之前代码保持不变
// 修改apk build的名字
android.applicationVariants.all { variant ->
 variant.outputs.all {
  if (outputFileName.endsWith('.apk')) {
   //这里使用之前定义apk文件名称
   outputFileName = apkName
  }
 }
}

把each修改为all，然后通过outputFileName修改生成的apk的名称。

如果你提示没有找到all方法或者是未找到outputFileName，你可以先把这个功能注释掉，等其他问题都解决了，再打开就可以解决这个问题了。

问题2

Error:All flavors must now belong to a named flavor dimension. Learn more at https://d.android.com/r/tools/flavorDimensions-missing-error-message.html

所有的flavor属性应当属于同一个命名空间

看着问题似乎有点深奥，其实就是需要我们为flavors设置一个版本，统一使用相同版本的flavors。

defaultConfig {
 targetSdkVersion：***
 minSdkVersion ：***
 versionCode：***
 versionName ：***
 //为flavor设置一个版本，命名是随意的
 flavorDimensions "versionCode"
}

问题3

有些库不能被正常引用，例如我使用的multidex，在上面的截图中已经提示我们如何解决这个问题

buildscript {
 repositories {
  ...
  // 添加google库的依赖
  google()
 }
 dependencies {
  ...
 }
}

问题4

Error:(2638) error: style attribute '@android:attr/windowEnterAnimation' not found.

提示我们找不到@android:attr/windowEnterAnimation，因为已经不支持@开头使用android自带的属性，我们只要把@符号删掉就可以了。

修改前：

< style name = "ToastStyle" parent = "android:Animation" >
  < item name = "@android:windowEnterAnimation" >@anim/push_fade_in item >
  < item name = "@android:windowExitAnimation" >@anim/push_fade_out item >
style >

修改后：

< style name = "ToastStyle" parent = "android:Animation" >
  < item name = "android:windowEnterAnimation" >@anim/push_fade_in item >
  < item name = "android:windowExitAnimation" >@anim/push_fade_out item >
style >

问题5

Error:Execution failed for task ':app:javaPreCompileAppDebug'.
Annotation processors must be explicitly declared now. The following dependencies on the compile classpath are found to contain annotation processor. Please add them to the annotationProcessor configuration.
- butterknife-6.1.0.jar (com.jakewharton:butterknife:6.1.0)
Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior. Note that this option is deprecated and will be removed in the future.
See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

好多的错误日志啊，其实最关键的只有前两行：

使用注解编译库，需要显示的声明，而我正在使用的butterknife是含有注解编译功能的，但是并没有声明。

解决办法：

android {

 defaultConfig {
 // 声明需要使用注解功能
  javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } }
  ...
 }
}

其他的变化

通过刚才的修改，我的工程已经运行起来了，但是发现了Android Studio 3.0 的几个小变化。

变化1

Warning:One of the plugins you are using supports Java 8 language features. To try the support built into the Android plugin, remove the following from your build.gradle:
apply plugin: 'me.tatarka.retrolambda'

从警告上看，希望我移除这个插件，于是我到官网上查看了一下信息：

If Android Studio detects that your project is using Jack, Retrolambda, or DexGuard, the IDE uses Java 8 support provided by those tools instead.

如果Android Studio发现你的工程中使用Jack ，Retrolambda 或DexGuard，编辑器会使用Java8支持，替换这个工具。
因为我使用me.tatarka.retrolambda第三方框架，所以就出现了这个，我们只要删除相关的配置就可以了。

变化2

提示有更高版本你的第三方框架：

上面的截图显示，gson有更高的版本2.8.3，提示我升级gson。这就省去了我们去github上查看是否版本更新的时间，非常的方便。

问题X：

Error: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error:

原创  2017年10月06日 17:13:07

• 5103

Error:Execution failed for task ':app:mergeDebugResources'.
> Error: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details

• 1
• 2

在项目的gradle.properties中：

android.enableAapt2=false

问题XX:

Error: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException:错误

原创  2016年12月21日 11:19:14

• 标签：
• android studio /
• gradle /
• eclipse

• 17687

把eclipse项目导入AndroidStudio，结果报错了。

错误：Error:Execution failed for task ':app:mergeDebugResources'. > Error: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException:

经过一轮的搜查：

在gradle的android{ ... } 中加入这两句就可以了

 android {

    ......

     aaptOptions.cruncherEnabled = false
     aaptOptions.useNewCruncher = false

    ......
 }

出现错误的原因是：Androidstudio严格审查png图片，就是png没有达到Androidstudio的要求

上面的那两句话大概意思是

禁止Gradle检查PNG的合法性

问题XXX:

android studio 3.0版本升级问题修改：

===》 问题一

 Error:Cannot choose between the following configurations of project :pickerview:
   - debugApiElements
   - debugRuntimeElements
   - releaseApiElements
   - releaseRuntimeElements
 All of them match the consumer attributes:
   - Configuration 'debugApiElements':
       - Found com.android.build.api.attributes.BuildTypeAttr 'debug' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.VariantAttr 'debug' but wasn't required.
       - Found org.gradle.api.attributes.Usage 'java-api' but wasn't required.
   - Configuration 'debugRuntimeElements':
       - Found com.android.build.api.attributes.BuildTypeAttr 'debug' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.VariantAttr 'debug' but wasn't required.
       - Found org.gradle.api.attributes.Usage 'java-runtime' but wasn't required.
   - Configuration 'releaseApiElements':
       - Found com.android.build.api.attributes.BuildTypeAttr 'release' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.VariantAttr 'release' but wasn't required.
       - Found org.gradle.api.attributes.Usage 'java-api' but wasn't required.
   - Configuration 'releaseRuntimeElements':
       - Found com.android.build.api.attributes.BuildTypeAttr 'release' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.VariantAttr 'release' but wasn't required.
       - Found org.gradle.api.attributes.Usage 'java-runtime' but wasn't required.

 Error:Cannot choose between the following configurations of project :pickerview:
   - debugApiElements
   - debugRuntimeElements
   - releaseApiElements
   - releaseRuntimeElements
 All of them match the consumer attributes:
   - Configuration 'debugApiElements':
       - Found com.android.build.api.attributes.BuildTypeAttr 'debug' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.VariantAttr 'debug' but wasn't required.
       - Found org.gradle.api.attributes.Usage 'java-api' but wasn't required.
   - Configuration 'debugRuntimeElements':
       - Found com.android.build.api.attributes.BuildTypeAttr 'debug' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.VariantAttr 'debug' but wasn't required.
       - Found org.gradle.api.attributes.Usage 'java-runtime' but wasn't required.
   - Configuration 'releaseApiElements':
       - Found com.android.build.api.attributes.BuildTypeAttr 'release' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.VariantAttr 'release' but wasn't required.
       - Found org.gradle.api.attributes.Usage 'java-api' but wasn't required.
   - Configuration 'releaseRuntimeElements':
       - Found com.android.build.api.attributes.BuildTypeAttr 'release' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but wasn't required.
       - Found com.android.build.gradle.internal.dependency.VariantAttr 'release' but wasn't required.
       - Found org.gradle.api.attributes.Usage 'java-runtime' but wasn't required.

===》解决方法（from：http://blog.csdn.net/pjingying/article/details/71975805?utm_source=itdadao&utm_medium=referral）：

Warning:android-apt plugin is incompatible with future version of Android Gradle plugin. Please use ‘annotationProcessor’ configuration instead.

原因：更新Android studio 原来项目出现问题。 
分析: 尤其是采用butterknife工具的，采用新的Android Studio都会出现这样的问题，本人根据提示最后猜测原因可能是Android studio更新，然后gradle更新了，这样的话可能使原来的android-apt 工具跟不上节奏了，所以让采用annotationProcessor工具。
解决: 把project下的build.gradle 当中的依赖 

修改成如下：

buildscript { 
repositories { 
mavenCentral() 
} 
dependencies { 
classpath ‘com.android.tools.build:gradle:2.4.0-alpha7’ 
//classpath ‘com.neenbedankt.gradle.plugins:android-apt:1.8’ //注释掉
} 
} 
  
然后再把module下的build.gradle ： 
修改如下： 
dependencies { 
compile project(‘:roadvance-sdk’)

compile ‘com.google.dagger:dagger:2.10’ 

//apt ‘com.google.dagger:dagger-compiler:2.10’

annotationProcessor ‘com.google.dagger:dagger-compiler:2.10’

compile ‘com.android.support:appcompat-v7:25.3.1’

compile ‘com.jakewharton:butterknife:8.5.1’ 

//apt ‘com.jakewharton:butterknife-compiler:8.5.1’

annotationProcessor ‘com.jakewharton:butterknife-compiler:8.5.1’ 
} 
再把 apply plugin: ‘com.neenbedankt.android-apt ’ 这个引用给删除。 
重新reBuild的一下

===》 问题二

 Error:Execution failed for task ':wigetlib:javaPreCompileDebug'.
 > Annotation processors must be explicitly declared now.  The following dependencies on the compile classpath are found to contain annotation processor.  Please add them to the annotationProcessor configuration.
     - butterknife-7.0.1.jar (com.jakewharton:butterknife:7.0.1)
   Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior.  Note that this option is deprecated and will be removed in the future.
   See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

 Error:Execution failed for task ':wigetlib:javaPreCompileDebug'.
 > Annotation processors must be explicitly declared now.  The following dependencies on the compile classpath are found to contain annotation processor.  Please add them to the annotationProcessor configuration.
     - butterknife-7.0.1.jar (com.jakewharton:butterknife:7.0.1)
   Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior.  Note that this option is deprecated and will be removed in the future.
   See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

解决方法：

在app的build中

android {

   ... 

  defaultConfig { 

         ...

       //添加如下配置就OK了

  javaCompileOptions { 

           annotationProcessorOptions {

              includeCompileClasspath = true

            }

         }

         ...

    }

       ...

  }

总结

这就是我今天遇到的问题及解决方案，如果之前有更多问题再补充。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。