Could not find property 'ext' on task ':conf

[kwon]

Hi I have problem with porting JavaFX to Android

I got this message while building Could not find property 'ext' on task ':conf debugging

I install gradle by apt-get install and sdk from android-site bit-bucket pointed.

my command is

gradle -PDEBUG -PANDROID_SDK=/home/kwon/utils/adt-bundle-linux-x86_64-20140702/sdk/ -PDIR=/home/kwon/work/ -PNAME=HelloAndroidWorld -PPACKAGE=com.helloworld -PJFX_SDK=/home/kwon/utils/dalvik-sdk/ -PJFX_APP=/home/kwon/utils/JavaFX_Test2/ createProject


log is..
14:18:59.649 [INFO] [org.gradle.BuildLogger] Starting Build
14:18:59.655 [DEBUG] [org.gradle.BuildLogger] Gradle user home: /home/kwon/.gradle
14:18:59.660 [DEBUG] [org.gradle.BuildLogger] Current dir: /home/kwon/utils/dalvik-sdk/android-tools
14:18:59.662 [DEBUG] [org.gradle.BuildLogger] Settings file: null
14:18:59.663 [DEBUG] [org.gradle.BuildLogger] Build file: null
14:18:59.666 [DEBUG] [org.gradle.BuildLogger] Select default project: with project directory '/home/kwon/utils/dalvik-sdk/android-tools'
14:18:59.685 [DEBUG] [org.gradle.initialization.BuildSourceBuilder] Starting to build the build sources.
14:18:59.688 [DEBUG] [org.gradle.initialization.BuildSourceBuilder] Gradle source dir does not exist. We leave.
14:18:59.691 [DEBUG] [org.gradle.initialization.DefaultGradlePropertiesLoader]Found env project properties: []
14:18:59.694 [DEBUG] [org.gradle.initialization.DefaultGradlePropertiesLoader]Found system project properties: []
14:19:00.369 [DEBUG] [org.gradle.initialization.ScriptEvaluatingSettingsProcessor                                                                            ]                                                                              Timing: Processing settings took: 0.673 secs
14:19:00.371 [INFO] [org.gradle.BuildLogger] Settings evaluated using empty settings file.
14:19:00.373 [DEBUG] [org.gradle.initialization.BuildLoader] Loading Project objects
14:19:00.562 [DEBUG] [org.gradle.initialization.BuildLoader] Looking for project properties from: /home/kwon/utils/dalvik-sdk/android-tools/gradle.properties
14:19:00.564 [DEBUG] [org.gradle.initialization.BuildLoader] project property file does not exists. We continue!
14:19:00.626 [DEBUG] [org.gradle.initialization.BuildLoader] Timing: Loading projects took: 0.251 secs
14:19:00.629 [INFO] [org.gradle.BuildLogger] Projects loaded. Root project using build file '/home/kwon/utils/dalvik-sdk/android-tools/build.gradle'.
14:19:00.633 [INFO] [org.gradle.BuildLogger] Included projects: [root project 'android-tools']
14:19:00.640 [INFO] [org.gradle.configuration.BuildScriptProcessor] Evaluating root project 'android-tools' using build file '/home/kwon/utils/dalvik-sdk/android-tools/build.gradle'.
14:19:01.144 [DEBUG] [org.gradle.configuration.BuildScriptProcessor] Timing: Running the build script took 0.483 secs
14:19:01.155 [ERROR] [org.gradle.BuildExceptionReporter]
14:19:01.167 [ERROR] [org.gradle.BuildExceptionReporter] FAILURE: Build failed with an exception.
14:19:01.186 [ERROR] [org.gradle.BuildExceptionReporter]
14:19:01.195 [ERROR] [org.gradle.BuildExceptionReporter] * Where:
14:19:01.205 [ERROR] [org.gradle.BuildExceptionReporter] Build file '/home/kwon/utils/dalvik-sdk/android-tools/build.gradle' line: 108
14:19:01.216 [ERROR] [org.gradle.BuildExceptionReporter]
14:19:01.226 [ERROR] [org.gradle.BuildExceptionReporter] * What went wrong:
14:19:01.236 [ERROR] [org.gradle.BuildExceptionReporter] A problem occurred evaluating root project 'android-tools'.
14:19:01.251 [ERROR] [org.gradle.BuildExceptionReporter] Cause: Could not find property 'ext' on task ':conf'.
14:19:01.264 [ERROR] [org.gradle.BuildExceptionReporter]
14:19:01.270 [ERROR] [org.gradle.BuildExceptionReporter] * Exception is:
14:19:01.277 [ERROR] [org.gradle.BuildExceptionReporter] org.gradle.api.GradleScriptException: A problem occurred evaluating root project 'android-tools'.
14:19:01.286 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.groovy.scripts.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:51)
14:19:01.298 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:127)
14:19:01.310 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.configuration.BuildScriptProcessor.evaluate(BuildScriptProcessor.java:38)
14:19:01.320 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.configuration.DefaultProjectEvaluator.evaluate(DefaultProjectEvaluator.java:38)
14:19:01.331 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:487)
14:19:01.342 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:71)
14:19:01.352 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.configuration.ProjectEvaluationConfigurer.execute(ProjectEvaluationConfigurer.java:23)
14:19:01.368 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.configuration.ProjectEvaluationConfigurer.execute(ProjectEvaluationConfigurer.java:21)
14:19:01.378 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.configuration.DefaultBuildConfigurer$1.execute(DefaultBuildConfigurer.java:38)
14:19:01.391 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.configuration.DefaultBuildConfigurer$1.execute(DefaultBuildConfigurer.java:35)
14:19:01.404 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.project.AbstractProject.configure(AbstractProject.java:463)
14:19:01.414 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.project.AbstractProject.allprojects(AbstractProject.java:458)
14:19:01.430 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:35)
14:19:01.441 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:141)
14:19:01.452 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:112)
14:19:01.463 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:80)
14:19:01.474 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.RunBuildAction.execute(RunBuildAction.java:41)
14:19:01.485 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.RunBuildAction.execute(RunBuildAction.java:27)
14:19:01.499 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.ExceptionReportingAction.execute(ExceptionReportingAction.java:32)
14:19:01.515 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.ExceptionReportingAction.execute(ExceptionReportingAction.java:21)
14:19:01.517 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.CommandLineActionFactory$WithLoggingAction.execute(CommandLineActionFactory.java:219)
14:19:01.524 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.CommandLineActionFactory$WithLoggingAction.execute(CommandLineActionFactory.java:203)
14:19:01.531 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.Main.execute(Main.java:55)
14:19:01.536 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.Main.main(Main.java:40)
14:19:01.539 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.ProcessBootstrap.runNoExit(ProcessBootstrap.java:46)
14:19:01.547 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.ProcessBootstrap.run(ProcessBootstrap.java:28)
14:19:01.549 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.launcher.GradleMain.main(GradleMain.java:24)
14:19:01.556 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: groovy.lang.MissingPropertyException: Could not find property 'ext' on task ':conf'.
14:19:01.560 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.AbstractDynamicObject.propertyMissingException(AbstractDynamicObject.java:43)
14:19:01.567 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.AbstractDynamicObject.getProperty(AbstractDynamicObject.java:35)
14:19:01.569 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.CompositeDynamicObject.getProperty(CompositeDynamicObject.java:54)
14:19:01.572 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.DefaultTask_Decorated.getProperty(Unknown Source)
14:19:01.574 [ERROR] [org.gradle.BuildExceptionReporter]     at build_2lituui4n91409sf0gk7osin3o$_run_closure1.doCall(/home/kwon/utils/dalvik-sdk/android-tools/build.gradle:108)
14:19:01.576 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.util.ConfigureUtil.configure(ConfigureUtil.java:61)
14:19:01.577 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.util.ConfigureUtil.configure(ConfigureUtil.java:31)
14:19:01.579 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.AbstractTask.configure(AbstractTask.java:398)
14:19:01.582 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.project.AbstractProject.task(AbstractProject.java:913)
14:19:01.584 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.BeanDynamicObject.invokeMethod(BeanDynamicObject.java:158)
14:19:01.585 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.CompositeDynamicObject.invokeMethod(CompositeDynamicObject.java:93)
14:19:01.587 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.api.internal.project.DefaultProject_Decorated.invokeMethod(Unknown Source)
14:19:01.589 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.groovy.scripts.BasicScript.methodMissing(BasicScript.groovy:68)
14:19:01.598 [ERROR] [org.gradle.BuildExceptionReporter]     at build_2lituui4n91409sf0gk7osin3o.run(/home/kwon/utils/dalvik-sdk/android-tools/build.gradle:107)
14:19:01.602 [ERROR] [org.gradle.BuildExceptionReporter]     at org.gradle.groovy.scripts.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:49)
14:19:01.604 [ERROR] [org.gradle.BuildExceptionReporter]     ... 26 more
14:19:01.605 [ERROR] [org.gradle.BuildExceptionReporter]
14:19:01.606 [LIFECYCLE] [org.gradle.BuildResultLogger]
14:19:01.608 [LIFECYCLE] [org.gradle.BuildResultLogger] BUILD FAILED
14:19:01.609 [LIFECYCLE] [org.gradle.BuildResultLogger]
14:19:01.610 [LIFECYCLE] [org.gradle.BuildResultLogger] Total time: 3.006 secs

I don't know what is the problem.
can you give me some advice??