sonar scanner扫描项目报错?报错

ERROR: Error during SonarQube Scanner execution
org.sonar.squidbridge.api.AnalysisException: Please provide compiled classes of your project with sonar.java.binaries property
	at org.sonar.java.JavaClasspath.init(JavaClasspath.java:59)
	at org.sonar.java.AbstractJavaClasspath.getElements(AbstractJavaClasspath.java:281)
	at org.sonar.java.SonarComponents.getJavaClasspath(SonarComponents.java:141)
	at org.sonar.java.JavaSquid.<init>(JavaSquid.java:83)
	at org.sonar.plugins.java.JavaSquidSensor.execute(JavaSquidSensor.java:83)
	at org.sonar.batch.sensor.SensorWrapper.analyse(SensorWrapper.java:57)
	at org.sonar.batch.phases.SensorsExecutor.executeSensor(SensorsExecutor.java:58)
	at org.sonar.batch.phases.SensorsExecutor.execute(SensorsExecutor.java:50)
	at org.sonar.batch.phases.AbstractPhaseExecutor.execute(AbstractPhaseExecutor.java:83)
	at org.sonar.batch.scan.ModuleScanContainer.doAfterStart(ModuleScanContainer.java:192)
	at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:142)
	at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:127)
	at org.sonar.batch.scan.ProjectScanContainer.scan(ProjectScanContainer.java:241)
	at org.sonar.batch.scan.ProjectScanContainer.scanRecursively(ProjectScanContainer.java:236)
	at org.sonar.batch.scan.ProjectScanContainer.doAfterStart(ProjectScanContainer.java:226)
	at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:142)
	at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:127)
	at org.sonar.batch.task.ScanTask.execute(ScanTask.java:47)
	at org.sonar.batch.task.TaskContainer.doAfterStart(TaskContainer.java:86)
	at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:142)
	at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:127)
	at org.sonar.batch.bootstrap.GlobalContainer.executeTask(GlobalContainer.java:106)
	at org.sonar.batch.bootstrapper.Batch.executeTask(Batch.java:119)
	at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:62)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.sonarsource.scanner.api.internal.IsolatedLauncherProxy.invoke(IsolatedLauncherProxy.java:60)
	at com.sun.proxy.$Proxy0.execute(Unknown Source)
	at org.sonarsource.scanner.api.EmbeddedScanner.doExecute(EmbeddedScanner.java:233)
	at org.sonarsource.scanner.api.EmbeddedScanner.runAnalysis(EmbeddedScanner.java:151)
	at org.sonarsource.scanner.cli.Main.runAnalysis(Main.java:110)
	at org.sonarsource.scanner.cli.Main.execute(Main.java:74)
	at org.sonarsource.scanner.cli.Main.main(Main.java:61)
ERROR: 
ERROR: Re-run SonarQube Scanner using the -X switch to enable full debug logging.
ERROR: SonarQube scanner exited with non-zero code: 1
Finished: FAILURE

如何解决呢？