Java 导入附加库后出现Android Studio gradle错误-smack

我在找不到答案的问题上犯了一个奇怪的错误

在我的类上完成一些导入后（代码如下）

我得到和格雷德尔错误：

Gradle: 
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':PPMMessenger:compileDebug'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

当我运行stacktrace时，它不会告诉我什么。。。因为没有任何东西可以追踪到我的代码

这是一个堆栈跟踪：

* Try:
Run gradlew tasks to get a list of available tasks.

* Exception is:
org.gradle.execution.TaskSelectionException: Task 'compileDebug' not found in ro
ot project 'Mateusz'.
        at org.gradle.execution.TaskSelector.getSelection(TaskSelector.java:67)
        at org.gradle.execution.commandline.CommandLineTaskParser.parseTasks(Com
mandLineTaskParser.java:41)
        at org.gradle.execution.TaskNameResolvingBuildConfigurationAction.doSele
ct(TaskNameResolvingBuildConfigurationAction.java:65)
        at org.gradle.execution.TaskNameResolvingBuildConfigurationAction.config
ure(TaskNameResolvingBuildConfigurationAction.java:47)
        at org.gradle.execution.DefaultBuildExecuter.configure(DefaultBuildExecu
ter.java:42)
        at org.gradle.execution.DefaultBuildExecuter.access$100(DefaultBuildExec
uter.java:23)
        at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecu
ter.java:48)
        at org.gradle.execution.ExcludedTaskFilteringBuildConfigurationAction.co
nfigure(ExcludedTaskFilteringBuildConfigurationAction.java:46)
        at org.gradle.execution.DefaultBuildExecuter.configure(DefaultBuildExecu
ter.java:42)
        at org.gradle.execution.DefaultBuildExecuter.access$100(DefaultBuildExec
uter.java:23)
        at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecu
ter.java:48)
        at org.gradle.execution.DefaultTasksBuildExecutionAction.configure(Defau
ltTasksBuildExecutionAction.java:38)
        at org.gradle.execution.DefaultBuildExecuter.configure(DefaultBuildExecu
ter.java:42)
        at org.gradle.execution.DefaultBuildExecuter.select(DefaultBuildExecuter
.java:35)
        at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(Default
GradleLauncher.java:155)
        at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradle
Launcher.java:113)
        at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLaun
cher.java:81)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildCon
troller.run(InProcessBuildActionExecuter.java:64)
        at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.jav
a:33)
        at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.jav
a:24)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProce
ssBuildActionExecuter.java:35)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProce
ssBuildActionExecuter.java:26)
        at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:50)
        at org.gradle.api.internal.Actions$RunnableActionAdapter.execute(Actions
.java:171)
        at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.
execute(CommandLineActionFactory.java:201)
        at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.
execute(CommandLineActionFactory.java:174)
        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(
CommandLineActionFactory.java:170)
        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(
CommandLineActionFactory.java:139)
        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionRep
ortingAction.java:33)
        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionRep
ortingAction.java:22)
        at org.gradle.launcher.Main.doAction(Main.java:48)
        at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
        at org.gradle.launcher.Main.main(Main.java:39)
        at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBoots
trap.java:50)
        at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.j
ava:32)
        at org.gradle.launcher.GradleMain.main(GradleMain.java:26)
        at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.ja
va:33)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:130)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:48)


BUILD FAILED

Total time: 2.368 secs

---

谢谢你的帮助。我在这里看不到任何可以帮助我自己解决这个问题的东西。

刚刚遇到这个问题，我需要将我的自定义jar库添加到build.gradle文件中：

dependencies {
    compile files('libs/android-support-v4.jar')
    ADD FILE HERE   
}

---

刚刚遇到这个问题，我需要将自定义jar库添加到build.gradle文件中：

dependencies {
    compile files('libs/android-support-v4.jar')
    ADD FILE HERE   
}

---

由于某些用户输入问题而无法选择要执行的任务时，会引发TaskSelectionException。实际上根本没有要执行的任务。我只是做一个导入。当我删除此导入时，所有内容都正常运行。为什么呢@我的朋友，我不知道。我没有遇到这种情况。TaskSelectionException是在由于用户输入问题而无法选择要执行的任务时抛出的。实际上根本没有要执行的任务。我只是做一个导入。当我删除此导入时，所有内容都正常运行。为什么呢@我的朋友，我不知道。我没有面对这样的问题。