MainActivity.java 注册百度语音插件时候出错

来源：15-6 Flutter Plugin开发指南-Android端实现-2【打通Flutter与Android的任通二脉】

lovejavacoffee

2019-12-12

package org.devio.flutter.flutter_trip;
import org.devio.flutter.plugin.asr.AsrPlugin;
import io.flutter.embedding.android.FlutterActivity;
import io.flutter.embedding.engine.FlutterEngine;
import io.flutter.plugins.GeneratedPluginRegistrant;
public class MainActivity extends FlutterActivity {
public void configureFlutterEngine(FlutterEngine flutterEngine) {
GeneratedPluginRegistrant.registerWith(flutterEngine);
registerSelfPlugin();
}
private void registerSelfPlugin() {
AsrPlugin.registerWith(registrarFor(“org.devio.flutter.plugin.asr.AsrPlugin”));
}
}
提示错误: 找不到符号
符号: 方法 registrarFor(String)
位置: 类 MainActivity

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ‘:app:compileDebugJavaWithJavac’.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:166)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter $3 . a c c e p t (E x e c u t e A c t i o n s T a s k E x e c u t e r . j a v a : 163) a t o r g . g r a d l e . i n t e r n a l . T r y$ Failure.ifSuccessfulOrElse(Try.java:191)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:156)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:62)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:108)
at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:94)
at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:95)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter $1 . c a l l (E v e n t F i r i n g T a s k E x e c u t e r . j a v a : 52) a t o r g . g r a d l e . i n t e r n a l . o p e r a t i o n s . D e f a u l t B u i l d O p e r a t i o n E x e c u t o r$ CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
at org.gradle.internal.operations.DefaultBuildOperationExecutor $1 . e x e c u t e (D e f a u l t B u i l d O p e r a t i o n E x e c u t o r . j a v a : 165) a t o r g . g r a d l e . i n t e r n a l . o p e r a t i o n s . D e f a u l t B u i l d O p e r a t i o n E x e c u t o r . e x e c u t e (D e f a u l t B u i l d O p e r a t i o n E x e c u t o r . j a v a : 250) a t o r g . g r a d l e . i n t e r n a l . o p e r a t i o n s . D e f a u l t B u i l d O p e r a t i o n E x e c u t o r . e x e c u t e (D e f a u l t B u i l d O p e r a t i o n E x e c u t o r . j a v a : 158) a t o r g . g r a d l e . i n t e r n a l . o p e r a t i o n s . D e f a u l t B u i l d O p e r a t i o n E x e c u t o r . c a l l (D e f a u l t B u i l d O p e r a t i o n E x e c u t o r . j a v a : 102) a t o r g . g r a d l e . i n t e r n a l . o p e r a t i o n s . D e l e g a t i n g B u i l d O p e r a t i o n E x e c u t o r . c a l l (D e l e g a t i n g B u i l d O p e r a t i o n E x e c u t o r . j a v a : 36) a t o r g . g r a d l e . a p i . i n t e r n a l . t a s k s . e x e c u t i o n . E v e n t F i r i n g T a s k E x e c u t e r . e x e c u t e (E v e n t F i r i n g T a s k E x e c u t e r . j a v a : 52) a t o r g . g r a d l e . e x e c u t i o n . p l a n . L o c a l T a s k N o d e E x e c u t o r . e x e c u t e (L o c a l T a s k N o d e E x e c u t o r . j a v a : 43) a t o r g . g r a d l e . e x e c u t i o n . t a s k g r a p h . D e f a u l t T a s k E x e c u t i o n G r a p h$ InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph $I n v o k e N o d e E x e c u t o r s A c t i o n . e x e c u t e (D e f a u l t T a s k E x e c u t i o n G r a p h . j a v a : 343) a t o r g . g r a d l e . e x e c u t i o n . t a s k g r a p h . D e f a u l t T a s k E x e c u t i o n G r a p h$ BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph $B u i l d O p e r a t i o n A w a r e E x e c u t i o n A c t i o n . e x e c u t e (D e f a u l t T a s k E x e c u t i o n G r a p h . j a v a : 322) a t o r g . g r a d l e . e x e c u t i o n . p l a n . D e f a u l t P l a n E x e c u t o r$ ExecutorWorker $1 . e x e c u t e (D e f a u l t P l a n E x e c u t o r . j a v a : 134) a t o r g . g r a d l e . e x e c u t i o n . p l a n . D e f a u l t P l a n E x e c u t o r$ ExecutorWorker $1 . e x e c u t e (D e f a u l t P l a n E x e c u t o r . j a v a : 129) a t o r g . g r a d l e . e x e c u t i o n . p l a n . D e f a u l t P l a n E x e c u t o r$ ExecutorWorker.execute(DefaultPlanExecutor.java:202)
at org.gradle.execution.plan.DefaultPlanExecutor $E x e c u t o r W o r k e r . e x e c u t e N e x t N o d e (D e f a u l t P l a n E x e c u t o r . j a v a : 193) a t o r g . g r a d l e . e x e c u t i o n . p l a n . D e f a u l t P l a n E x e c u t o r$ ExecutorWorker.run(DefaultPlanExecutor.java:129)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
at org.gradle.internal.concurrent.ManagedExecutorImpl $1 . r u n (M a n a g e d E x e c u t o r I m p l . j a v a : 48) a t j a v a . u t i l . c o n c u r r e n t . T h r e a d P o o l E x e c u t o r . r u n W o r k e r (T h r e a d P o o l E x e c u t o r . j a v a : 1149) a t j a v a . u t i l . c o n c u r r e n t . T h r e a d P o o l E x e c u t o r$ Worker.run(ThreadPoolExecutor.java:624)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.gradle.api.internal.tasks.compile.CompilationFailedException: Compilation failed; see the compiler error output for details.
at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:56)
at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:39)
at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.delegateAndHandleErrors(NormalizingJavaCompiler.java:100)
at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:52)
at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:38)
at org.gradle.api.internal.tasks.compile.AnnotationProcessorDiscoveringCompiler.execute(AnnotationProcessorDiscoveringCompiler.java:51)
at org.gradle.api.internal.tasks.compile.AnnotationProcessorDiscoveringCompiler.execute(AnnotationProcessorDiscoveringCompiler.java:37)
at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:39)
at org.gradle.api.internal.tasks.compile.incremental.IncrementalCompilerFactory$2.execute(IncrementalCompilerFactory.java:101)
at org.gradle.api.internal.tasks.compile.incremental.IncrementalCompilerFactory$2.execute(IncrementalCompilerFactory.java:97)
at