Android Studio 使用中遇到的问题和解决方案

1.解决Gradle DSL method not found: ‘android()’

这个问题困扰了我很长时间，好吧，搜了半天全都是runProguard的，最后在stackoverflow上搜到解决办法了：
http://stackoverflow.com/questions/27735646/android-studio-gradle-dsl-method-not-found-android-error17-0

解决方法：

删掉最外层的build.gradle中的

android { 
      compileSdkVersion 22       buildToolsVersion "20.0.0"
}

然后重新刷新就ok了

2.解决Gradle DSL method not found: ‘runProguard()’

本来刚升级studio到1.0的时候就想写这篇文章的，但是没空就没写了。

好吧，今天把这个问题写下，因为很多同事也遇到这个问题，解决不了，在你把Android studio升级到1.0后，你会发现你的gradle sync的时候会报底下这个错：

报这个错的原因其实是因为你在升级完后，然后工程会默认把你的gradle版本替换成最新的版本，所以你的build.gradle文件中的dependencies也变成最新的了，如下：

    dependencies {
        classpath 'com.android.tools.build:gradle:1.0.0-rc1'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }

那为啥变成最新的就不行了，其实这个我觉得是gradle团队可能不是那么强大的原因吧，新版本可能没有做到向下兼容旧版本...其实看报错就知道了，runProguard（）找不着了。以前也有出现过0.12到0.14后 "useOldManifestMerger“找不到的问题。

要让sync成功，改下gradle的版本就可以了，如下：

dependencies {
        classpath 'com.android.tools.build:gradle:0.14.1'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }

PS，感谢ohskean的提醒，我这边也将他提供的方法加到文章来，

old:

<code style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; font-family: Consolas, Menlo, Monaco, 'Lucida Console', 'Liberation Mono', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Courier New', monospace, serif; white-space: inherit;"><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">buildTypes </span><span class="pun" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">{</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">
    release </span><span class="pun" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">{</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">

        <span style="color: rgb(255, 0, 0);">runProguard </span></span><span class="kwd" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;"><span style="color: rgb(255, 0, 0);">false</span></span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;"> </span><span class="com" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; color: rgb(128, 128, 128); background-color: transparent; background-position: initial initial; background-repeat: initial initial;">// 已经被废弃并且停止使用了</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">

        ......</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">
    </span><span class="pun" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">}</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">
</span><span class="pun" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">}</span></code>

new:

<code style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; font-family: Consolas, Menlo, Monaco, 'Lucida Console', 'Liberation Mono', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Courier New', monospace, serif; white-space: inherit;"><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">buildTypes </span><span class="pun" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">{</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">
    release </span><span class="pun" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">{</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">

        <span style="color: rgb(255, 0, 0);">minifyEnabled </span></span><span class="kwd" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;"><span style="color: rgb(255, 0, 0);">false</span></span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;"> </span><span class="com" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; color: rgb(128, 128, 128); background-color: transparent; background-position: initial initial; background-repeat: initial initial;">// 替代的方式</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">

        ......</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">
    </span><span class="pun" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">}</span><span class="pln" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">
</span><span class="pun" style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; background-color: transparent; background-position: initial initial; background-repeat: initial initial;">}</span></code>