IllegalArgumentException while analyzing Dart of Flutter project

[ralfeus]

While running sonar-scanner on either Dart library or Flutter project I get following error:

INFO: Detected Flutter project with version 0.0.1+47
INFO: Backup of original analysis_options.yaml file to analysis_options.yaml.sonar
INFO: Running 'flutter [analyze, --no-fatal-warnings, --no-fatal-infos]'
INFO: Command 'flutter analyze --no-fatal-warnings --no-fatal-infos' finished (exit 0)
INFO: Restored original analysis_options.yaml file
INFO: Recording 3124 issues
INFO: ------------------------------------------------------------------------
INFO: EXECUTION FAILURE
INFO: ------------------------------------------------------------------------
INFO: Total time: 30.095s
INFO: Final Memory: 48M/240M
INFO: ------------------------------------------------------------------------
ERROR: Error during SonarScanner execution
java.lang.IllegalArgumentException: 31 is not a valid line for pointer. File analysis_options.yaml has 30 line(s)
	at org.sonar.api.utils.Preconditions.checkArgument(Preconditions.java:43)
	at org.sonar.api.batch.fs.internal.DefaultInputFile.checkValid(DefaultInputFile.java:371)
	at org.sonar.api.batch.fs.internal.DefaultInputFile.newPointer(DefaultInputFile.java:307)
	at org.sonar.api.batch.fs.internal.DefaultInputFile.selectLine(DefaultInputFile.java:330)
	at fr.insideapp.sonarqube.dart.lang.issues.dartanalyzer.DartAnalyzerReportIssue.toNewIssueLocationFor(DartAnalyzerReportIssue.java:114)
	at fr.insideapp.sonarqube.dart.lang.issues.dartanalyzer.DartAnalyzerSensor.lambda$recordIssues$0(DartAnalyzerSensor.java:100)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
	at fr.insideapp.sonarqube.dart.lang.issues.dartanalyzer.DartAnalyzerSensor.recordIssues(DartAnalyzerSensor.java:89)
	at fr.insideapp.sonarqube.dart.lang.issues.dartanalyzer.DartAnalyzerSensor.execute(DartAnalyzerSensor.java:80)
	at org.sonar.scanner.sensor.AbstractSensorWrapper.analyse(AbstractSensorWrapper.java:64)
	at org.sonar.scanner.sensor.ModuleSensorsExecutor.execute(ModuleSensorsExecutor.java:88)
	at org.sonar.scanner.sensor.ModuleSensorsExecutor.lambda$execute$1(ModuleSensorsExecutor.java:61)
	at org.sonar.scanner.sensor.ModuleSensorsExecutor.withModuleStrategy(ModuleSensorsExecutor.java:79)
	at org.sonar.scanner.sensor.ModuleSensorsExecutor.execute(ModuleSensorsExecutor.java:61)
	at org.sonar.scanner.scan.SpringModuleScanContainer.doAfterStart(SpringModuleScanContainer.java:82)
	at org.sonar.core.platform.SpringComponentContainer.startComponents(SpringComponentContainer.java:201)
	at org.sonar.core.platform.SpringComponentContainer.execute(SpringComponentContainer.java:180)
	at org.sonar.scanner.scan.SpringProjectScanContainer.scan(SpringProjectScanContainer.java:398)
	at org.sonar.scanner.scan.SpringProjectScanContainer.scanRecursively(SpringProjectScanContainer.java:394)
	at org.sonar.scanner.scan.SpringProjectScanContainer.doAfterStart(SpringProjectScanContainer.java:363)
	at org.sonar.core.platform.SpringComponentContainer.startComponents(SpringComponentContainer.java:201)
	at org.sonar.core.platform.SpringComponentContainer.execute(SpringComponentContainer.java:180)
	at org.sonar.scanner.bootstrap.SpringGlobalContainer.doAfterStart(SpringGlobalContainer.java:139)
	at org.sonar.core.platform.SpringComponentContainer.startComponents(SpringComponentContainer.java:201)
	at org.sonar.core.platform.SpringComponentContainer.execute(SpringComponentContainer.java:180)
	at org.sonar.batch.bootstrapper.Batch.doExecute(Batch.java:71)
	at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:65)
	at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:46)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.sonarsource.scanner.api.internal.IsolatedLauncherProxy.invoke(IsolatedLauncherProxy.java:60)
	at jdk.proxy1/jdk.proxy1.$Proxy0.execute(Unknown Source)
	at org.sonarsource.scanner.api.EmbeddedScanner.doExecute(EmbeddedScanner.java:189)
	at org.sonarsource.scanner.api.EmbeddedScanner.execute(EmbeddedScanner.java:138)
	at org.sonarsource.scanner.cli.Main.execute(Main.java:126)
	at org.sonarsource.scanner.cli.Main.execute(Main.java:81)
	at org.sonarsource.scanner.cli.Main.main(Main.java:62)