Android Studio 3.0 最新版本运行报错： Task 'package' is ambiguous in root project 'MyRobot'. Candidates are: 'packageDebug', 'packageDebugAndroidTest', 'packageRelease'.

09:52:22.876 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
09:52:22.877 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build failed with an exception.
09:52:22.877 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
09:52:22.877 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * What went wrong:
09:52:22.877 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Task 'package' is ambiguous in root project 'MyRobot'. Candidates are: 'packageDebug', 'packageDebugAndroidTest', 'packageRelease'.
09:52:22.877 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
09:52:22.877 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Try:
09:52:22.878 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Run gradle tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace.
09:52:22.878 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
09:52:22.878 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Get more help at https://help.gradle.org
09:52:22.879 [ERROR] [org.gradle.internal.buildevents.BuildResultLogger]
09:52:22.879 [ERROR] [org.gradle.internal.buildevents.BuildResultLogger] BUILD FAILED in 1m 2s
09:52:22.914 [DEBUG] [org.jetbrains.kotlin.gradle.plugin.KotlinGradleBuildServices] [KOTLIN] Skipping kotlin cleanup since compiler wasn't called
09:52:22.944 [DEBUG] [org.jetbrains.kotlin.gradle.plugin.KotlinGradleBuildServices] [KOTLIN] Disposed KotlinGradleBuildServices
09:52:22.945 [DEBUG] [org.gradle.internal.work.DefaultWorkerLeaseService] Worker lease root.1 completed (0 worker(s) in use)

$ gradle tasks

Task :tasks

---

All tasks runnable from root project

Android tasks

androidDependencies - Displays the Android dependencies of the project.
signingReport - Displays the signing info for each variant.
sourceSets - Prints out all the source sets defined in this project.

Build tasks

assemble - Assembles all variants of all applications and secondary packages.
assembleAndroidTest - Assembles all the Test applications.
assembleDebug - Assembles all Debug builds.
assembleRelease - Assembles all Release builds.
build - Assembles and tests this project.
buildDependents - Assembles and tests this project and all projects that depend on it.
buildNeeded - Assembles and tests this project and all projects it depends on.
clean - Deletes the build directory.
cleanBuildCache - Deletes the build cache directory.
compileDebugAndroidTestSources
compileDebugSources
compileDebugUnitTestSources
compileReleaseSources
compileReleaseUnitTestSources
mockableAndroidJar - Creates a version of android.jar that's suitable for unit tests.

Build Setup tasks

init - Initializes a new Gradle build.
wrapper - Generates Gradle wrapper files.

Help tasks

buildEnvironment - Displays all buildscript dependencies declared in root project 'MyRobot'.
components - Displays the components produced by root project 'MyRobot'. [incubating]
dependencies - Displays all dependencies declared in root project 'MyRobot'.
dependencyInsight - Displays the insight into a specific dependency in root project 'MyRobot'.
dependentComponents - Displays the dependent components of components in root project 'MyRobot'. [incubating]
help - Displays a help message.
model - Displays the configuration model of root project 'MyRobot'. [incubating]
projects - Displays the sub-projects of root project 'MyRobot'.
properties - Displays the properties of root project 'MyRobot'.
tasks - Displays the tasks runnable from root project 'MyRobot' (some of the displayed tasks may belong to subprojects).

Install tasks

installDebug - Installs the Debug build.
installDebugAndroidTest - Installs the android (on device) tests for the Debug build.
uninstallAll - Uninstall all applications.
uninstallDebug - Uninstalls the Debug build.
uninstallDebugAndroidTest - Uninstalls the android (on device) tests for the Debug build.
uninstallRelease - Uninstalls the Release build.

Verification tasks

check - Runs all checks.
connectedAndroidTest - Installs and runs instrumentation tests for all flavors on connected devices.
connectedCheck - Runs all device checks on currently connected devices.
connectedDebugAndroidTest - Installs and runs the tests for debug on connected devices.
deviceAndroidTest - Installs and runs instrumentation tests using all Device Providers.
deviceCheck - Runs all device checks using Device Providers and Test Servers.
lint - Runs lint on all variants.
lintDebug - Runs lint on the Debug build.
lintRelease - Runs lint on the Release build.
lintVitalRelease - Runs lint on just the fatal issues in the release build.
test - Run unit tests for all variants.
testDebugUnitTest - Run unit tests for the debug build.
testReleaseUnitTest - Run unit tests for the release build.

To see all tasks and more detail, run gradle tasks --all

To see more detail about a task, run gradle help --task

BUILD SUCCESSFUL in 2s
1 actionable task: 1 executed