android studio使用错误排查记录

配环境这玩意儿真是考验耐力和碰运气啊！！！！导入一个已有的gradle项目一开始提示 Error:failed to find Build Tools revision 21.1.1来回改project structure里面的配置，指定不同的SDK，反正安装android studio默认的sdk不能使用Error:(11, 0) Gradle DSL method not found: 'android()'Possible causes:the project '' may be using a version of Gradle that does not contain the method.The build file may be missing a Gradle plugin.大概还是指定的编译版本不对尝试改一下project structure里面的配置，发现子module的配置没有，只是外面一级目录，改成指定的SDK build tools各种重新导入-删除-重新导入-卸载ing（在android studio中可能由于误操作，删除硬盘的源文件，所以最好先备份）终于有一次导入后，还是提示 Error:failed to find Build Tools revision 21.1.1但是，这次打开project structure出现了很多modules，这才是我要的方式嘛，挨个配置它们的编译中错误：UNEXPECTED TOP-LEVEL ERROR:java.lang.OutOfMemoryError: Java heap spaceat java.util.Arrays.copyOfRange(Arrays.java:3658)at java.lang.String.<init>(String.java:201)at java.lang.StringBuilder.toString(StringBuilder.java:407)at com.android.dx.rop.type.Type.asUninitialized(Type.java:836)at com.android.dx.cf.code.ValueAwareMachine.run(ValueAwareMachine.java:172)at com.android.dx.cf.code.RopperMachine.run(RopperMachine.java:304)at com.android.dx.cf.code.Simulator$SimVisitor.visitConstant(Simulator.java:691)at com.android.dx.cf.code.BytecodeArray.parseInstruction(BytecodeArray.java:764)at com.android.dx.cf.code.Simulator.simulate(Simulator.java:94)at com.android.dx.cf.code.Ropper.processBlock(Ropper.java:787)at com.android.dx.cf.code.Ropper.doit(Ropper.java:742)at com.android.dx.cf.code.Ropper.convert(Ropper.java:349)at com.android.dx.dex.cf.CfTranslator.processMethods(CfTranslator.java:280)at com.android.dx.dex.cf.CfTranslator.translate0(CfTranslator.java:137)at com.android.dx.dex.cf.CfTranslator.translate(CfTranslator.java:93)at com.android.dx.command.dexer.Main.processClass(Main.java:729)at com.android.dx.command.dexer.Main.processFileBytes(Main.java:673)at com.android.dx.command.dexer.Main.access$300(Main.java:83)at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:602)at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284)at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)at com.android.dx.command.dexer.Main.processOne(Main.java:632)at com.android.dx.command.dexer.Main.processAllFiles(Main.java:505)at com.android.dx.command.dexer.Main.runMultiDex(Main.java:334)at com.android.dx.command.dexer.Main.run(Main.java:244)at com.android.dx.command.dexer.Main.main(Main.java:215)at com.android.dx.command.Main.main(Main.java:106)在项目配置的build.gradle文件里面，有一段

dexOptions {
javaMaxHeapSize "2g"
}

有的版本android studio需要注释，有的需要保留=====================以下为转载其他地方写的编译等出错问题================原文：http://www.codeceo.com/article/android-studio-problems.html

问题一：

Error:(26, 9) Attribute application@icon value=(@drawable/logo) from AndroidManifest.xml:26:9Error:(28, 9) Attribute application@theme value=(@style/ThemeActionBar) from AndroidManifest.xml:28:9is also present at XXXX-trunk:XXXXLib:unspecified:15:9 value=(@style/AppTheme)Suggestion: add ‘tools:replace=”android:theme”‘ to <application> element at AndroidManifest.xml:24:5 to overrideError:Execution failed for task ‘:XXXX:processDebugManifest’.> Manifest merger failed with multiple errors, see logs原因：AS的Gradle插件默认会启用Manifest Merger Tool，若Library项目中也定义了与主项目相同的属性（例如默认生成的android:icon和android:theme），则此时会合并失败，并报上面的错误。解决方法有以下2种：方法1：在Manifest.xml的application标签下添加tools:replace=”android:icon, android:theme”（多个属性用,隔开，并且记住在manifest根标签上加入xmlns:tools=”http://schemas.android.com/tools”，否则会找不到namespace哦）方法2：在build.gradle根标签上加上useOldManifestMerger true （懒人方法）参考官方介绍： http://tools.android.com/tech-docs/new-build-system/user-guide/manifest-merger

问题二：

Library Project里面的BuildConfig.DEBUG永远都是false。这是Android Studio的一个已知问题，某Google的攻城狮说，Library projects目前只会生成release的包。Issue 52962: https://code.google.com/p/android/issues/detail?id=52962 解决方法：（某Google的攻城狮推荐的方法）Workaround: instaed of BuildConfig.DEBUG create another boolean variable at lib-project’s e.g. BuildConfig.RELEASE and link it with application’s buildType. https://gist.github.com/almozavr/d59e770d2a6386061fcb 参考stackoverflow上的这篇帖： http://stackoverflow.com/questions/20176284/buildconfig-debug-always-false-when-building-library-projects-with-gradle

问题三：

每次保存的时候，每行多余的空格和TAB会被自动删除（例如结尾、空行的多余空格或TAB）特别是每次准备提交SVN，Review代码时候你就蛋疼了，显示一堆不相关的更改，看的眼花。解决方法：Settings->IDE Settings->Editor->Other->Strip trailing spaces on Save->None

问题四：

编译的时候，报：Failure [INSTALL_FAILED_OLDER_SDK]。一般是系统自动帮你设置了compileSdkVersion解决方法：修改build.gradle下的compileSdkVersion ‘android-L’为compileSdkVersion 19（或者你本机已有的SDK即可）