title: Error during SonarQube Scanner execution : java.lang.IllegalArgumentException: 79 is not a valid line offset for pointer
body: <p>I have this error message when running SonarQube on a C# project :</p>
  
  <pre><code>...
  
  INFO: ------------------------------------------------------------------------
  INFO: EXECUTION FAILURE
  INFO: ------------------------------------------------------------------------
  INFO: Total time: 30.377s
  INFO: Final Memory: 58M/828M
  INFO: ------------------------------------------------------------------------
  ERROR: Error during SonarQube Scanner execution
  java.lang.IllegalArgumentException: 79 is not a valid line offset for pointer. File [moduleKey=dot-net_SCHLUMBERGER-Helios, relative=wtap_nextgen/Src/Component/WebSolution/MMS/wwwroot/css/bootwatch-paper.css, basedir=/builds/dot-net/SCHLUMBERGER-Helios] has 78 character(s) at line 1
      at org.sonar.api.internal.google.common.base.Preconditions.checkArgument(Preconditions.java:148)
      at org.sonar.api.batch.fs.internal.DefaultInputFile.checkValid(DefaultInputFile.java:218)
      at org.sonar.api.batch.fs.internal.DefaultInputFile.newPointer(DefaultInputFile.java:209)
      at org.sonar.api.batch.fs.internal.DefaultInputFile.newRange(DefaultInputFile.java:240)
      at org.sonar.css.issue.PreciseIssue.save(PreciseIssue.java:119)
      at org.sonar.plugins.css.CssSquidSensor.saveIssues(CssSquidSensor.java:121)
      at org.sonar.plugins.css.CssSquidSensor.save(CssSquidSensor.java:105)
      at org.sonar.plugins.css.CssSquidSensor.analyse(CssSquidSensor.java:89)
      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:240)
      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:72)
      at org.sonarsource.scanner.cli.Main.main(Main.java:60)
  
  ERROR: Build failed: exit code 1
  </code></pre>
  
  <p>Does anyone have a clue where this comes from ?
  It seems like the scanner is trying to access character 79 of the first line of <code>XXX/bootwatch-paper.css</code>, which only has 78 characters. Why would it try to read the 79th character ?
  Could this be an encoding issue?
  How to fix this ?</p>
  
  <p>Cheers!</p>