关于android：错误：任务执行失败’：app：dexDebug’

Error:Execution failed for task ':app:dexDebug'

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我正在尝试创建一个简单的应用程序，但每次我尝试运行该应用程序时，都会收到此错误。

Error:Execution failed for task ':app:dexDebug'.>com.android.ide.common.internal.LoggedErrorException: Failed to run command:
C:\Users\Alejandro\AppData\Local\Android\sdk\build-tools\21.1.2\dx.bat --dex --no-optimize --output C:\Users\Alejandro\Dropbox\2o DAM\AndroidStudioProjectsDropbox\FastyFast\app\build\intermediates\dex\debug --input-list=C:\Users\Alejandro\Dropbox\2o DAM\AndroidStudioProjectsDropbox\FastyFast\app\build\intermediates\tmp\dex\debug\inputList.txt
Error Code:
1
Output:
UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.RuntimeException: C:\Users\Alejandro\Dropbox\2?o DAM\AndroidStudioProjectsDropbox\FastyFast\app\build\intermediates\classes\debug: file not found
at com.android.dex.util.FileUtils.readFile(FileUtils.java:51)
at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:169)
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:510)
at com.android.dx.command.dexer.Main.runMonoDex(Main.java:280)
at com.android.dx.command.dexer.Main.run(Main.java:246)
at com.android.dx.command.dexer.Main.main(Main.java:215)
at com.android.dx.command.Main.main(Main.java:106)
UNEXPECTED TOP-LEVEL EXCEPTION:
java.io.FileNotFoundException: C:\Users\Alejandro\Dropbox\2?o DAM\AndroidStudioProjectsDropbox\FastyFast\app\build\intermediates\pre-dexed\debug\support-annotations-21.0.3-b29fd01b30007e41669b44d2e19fb39eea844240.jar (El sistema no puede encontrar la ruta especificada)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.zip.ZipFile.(Unknown Source)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:244)
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:510)
at com.android.dx.command.dexer.Main.runMonoDex(Main.java:280)
at com.android.dx.command.dexer.Main.run(Main.java:246)
at com.android.dx.command.dexer.Main.main(Main.java:215)
at com.android.dx.command.Main.main(Main.java:106)
UNEXPECTED TOP-LEVEL EXCEPTION:
java.io.FileNotFoundException: C:\Users\Alejandro\Dropbox\2?o DAM\AndroidStudioProjectsDropbox\FastyFast\app\build\intermediates\pre-dexed\debug\internal_impl-21.0.3-5a0c9ff4d81e7e53b50296e4e2549fc036b4b3db.jar (El sistema no puede encontrar la ruta especificada)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.zip.ZipFile.(Unknown Source)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:244)
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:510)
at com.android.dx.command.dexer.Main.runMonoDex(Main.java:280)
at com.android.dx.command.dexer.Main.run(Main.java:246)
at com.android.dx.command.dexer.Main.main(Main.java:215)
at com.android.dx.command.Main.main(Main.java:106)
UNEXPECTED TOP-LEVEL EXCEPTION:
java.io.FileNotFoundException: C:\Users\Alejandro\Dropbox\2?o DAM\AndroidStudioProjectsDropbox\FastyFast\app\build\intermediates\pre-dexed\debug\classes-1a3933f3cfbb63995646d20c10e8ee01b7f2eac5.jar (El sistema no puede encontrar la ruta especificada)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.zip.ZipFile.(Unknown Source)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:244)
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:510)
at com.android.dx.command.dexer.Main.runMonoDex(Main.java:280)
at com.android.dx.command.dexer.Main.run(Main.java:246)
at com.android.dx.command.dexer.Main.main(Main.java:215)
at com.android.dx.command.Main.main(Main.java:106)
UNEXPECTED TOP-LEVEL EXCEPTION:
java.io.FileNotFoundException: C:\Users\Alejandro\Dropbox\2?o DAM\AndroidStudioProjectsDropbox\FastyFast\app\build\intermediates\pre-dexed\debug\classes-1337a4751778935a1a6ca6cffc12c9f23e5cc37f.jar (El sistema no puede encontrar la ruta especificada)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.zip.ZipFile.(Unknown Source)
at java.util.zip.ZipFile.(Unknown Source)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:244)
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:510)
at com.android.dx.command.dexer.Main.runMonoDex(Main.java:280)
at com.android.dx.command.dexer.Main.run(Main.java:246)
at com.android.dx.command.dexer.Main.main(Main.java:215)
at com.android.dx.command.Main.main(Main.java:106)
5 errors; aborting

我正在寻找解决方案，但我一无所获。

这是我的build.gradle文件：

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apply plugin: 'com.android.application'

android {
compileSdkVersion 21
buildToolsVersion"21.1.2"

defaultConfig {
applicationId"com.fasty.fastyfast"
minSdkVersion 15
targetSdkVersion 21
versionCode 1
versionName"1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
}

这是我的AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.fasty.fastyfast">

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>

我同步时不会崩溃。使用Gradle Files但我尝试运行该应用程序

C： Users Alejandro Dropbox 2o DAM AndroidStudioProjectsDropbox FastyFast app build intermediates dex debug --input-list = C： Users Alejandro Dropbox 2o DAM AndroidStudioProjectsDropbox FastyFast app build中间体 tmp目录 DEX调试 inputList.txt

o Android或班级无法识别此角色。我建议你改变项目的名称，放一些没有特殊字符的东西。