title: How to solve Sonar error: Unable to load component class org.sonar.scanner.scan.ProjectLock
body: <p>I have some issues while running Sonar on my netbeans' project. It's not working and i have the following error :</p>
  
  <pre><code>C:\Users\remy.fischer\Desktop\NetBeansProjects\NetBeansProjects\BinPacking\sonar-scanner-3.0.3.778-windows\bin&gt;sonar-scanner -Dsonar.projectKey=..... -Dsonar.projectName=...
      INFO: Scanner configuration file: C:\Users\remy.fischer\Desktop\NetBeansProjects
      \NetBeansProjects\BinPacking\sonar-scanner-3.0.3.778-windows\bin\..\conf\sonar-s
      canner.properties
      INFO: Project root configuration file: NONE
      INFO: SonarQube Scanner 3.0.3.778
      INFO: Java 1.8.0_121 Oracle Corporation (64-bit)
      INFO: Windows 7 6.1 amd64
      INFO: User cache: C:\Users\remy.fischer\.sonar\cache
      can't open C:\Users\remy.fischer\Desktop\NetBeansProjects\NetBeansProjects\BinPa
      cking\sonar-scanner-3.0.3.778-windows\jre\lib\tzmappings.
      INFO: Load global settings
      INFO: Load global settings (done) | time=62ms
      INFO: User cache: C:\Users\remy.fischer\.sonar\cache
      INFO: Load plugins index
      INFO: Load plugins index (done) | time=0ms
      INFO: SonarQube server 6.4.0
      INFO: Default locale: "fr_FR", source code encoding: "UTF-8"
      INFO: Process project properties
      INFO: ------------------------------------------------------------------------
      INFO: EXECUTION FAILURE
      INFO: ------------------------------------------------------------------------
      INFO: Total time: 1.248s
      INFO: Final Memory: 39M/178M
      INFO: ------------------------------------------------------------------------
      ERROR: Error during SonarQube Scanner execution
      java.lang.IllegalStateException: Unable to load component class org.sonar.scanner.scan.ProjectLock
              at org.sonar.core.platform.ComponentContainer$ExtendedDefaultPicoContainer.getComponent(ComponentContainer.java:71)
              at org.picocontainer.DefaultPicoContainer.getComponent(DefaultPicoContainer.java:678)
              at org.sonar.core.platform.ComponentContainer.getComponentByType(ComponentContainer.java:283)
              at org.sonar.scanner.scan.ProjectScanContainer.doBeforeStart(ProjectScanContainer.java:110)
              at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:142)
              at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:129)
              at org.sonar.scanner.task.ScanTask.execute(ScanTask.java:47)
              at org.sonar.scanner.task.TaskContainer.doAfterStart(TaskContainer.java:86)
              at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:144)
              at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:129)
              at org.sonar.scanner.bootstrap.GlobalContainer.executeTask(GlobalContainer.java:118)
              at org.sonar.batch.bootstrapper.Batch.executeTask(Batch.java:117)
              at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:63)
              at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:498)
              at org.sonarsource.scanner.api.internal.IsolatedLauncherProxy.invoke(IsolatedLauncherProxy.java:60)
              at com.sun.proxy.$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:123)
              at org.sonarsource.scanner.cli.Main.execute(Main.java:77)
              at org.sonarsource.scanner.cli.Main.main(Main.java:61)
      Caused by: java.lang.IllegalStateException: Unable to load component class org.sonar.api.batch.bootstrap.ProjectReactor
              at org.sonar.core.platform.ComponentContainer$ExtendedDefaultPicoContainer.getComponent(ComponentContainer.java:71)
              at org.picocontainer.DefaultPicoContainer.getComponent(DefaultPicoContainer.java:632)
              at org.picocontainer.parameters.BasicComponentParameter$1.resolveInstance(BasicComponentParameter.java:118)
              at org.picocontainer.parameters.ComponentParameter$1.resolveInstance(ComponentParameter.java:136)
              at org.picocontainer.injectors.SingleMemberInjector.getParameter(SingleMemberInjector.java:78)
              at org.picocontainer.injectors.ConstructorInjector$CtorAndAdapters.getParameterArguments(ConstructorInjector.java:309)
              at org.picocontainer.injectors.ConstructorInjector$1.run(ConstructorInjector.java:335)
              at org.picocontainer.injectors.AbstractInjector$ThreadLocalCyclicDependencyGuard.observe(AbstractInjector.java:270)
              at org.picocontainer.injectors.ConstructorInjector.getComponentInstance(ConstructorInjector.java:364)
              at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.getComponentInstance(AbstractInjectionFactory.java:56)
              at org.picocontainer.behaviors.AbstractBehavior.getComponentInstance(AbstractBehavior.java:64)
              at org.picocontainer.behaviors.Stored.getComponentInstance(Stored.java:91)
              at org.picocontainer.DefaultPicoContainer.getInstance(DefaultPicoContainer.java:699)
              at org.picocontainer.DefaultPicoContainer.getComponent(DefaultPicoContainer.java:647)
              at org.sonar.core.platform.ComponentContainer$ExtendedDefaultPicoContainer.getComponent(ComponentContainer.java:69)
              ... 23 more
      emy.fischerDesktopNetBeansProjectsNetBeansProjectsBinPackingsrcbinpacking
              at sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:182)
              at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:153)
              at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:77)
              at sun.nio.fs.WindowsPath.parse(WindowsPath.java:94)
              at sun.nio.fs.WindowsFileSystem.getPath(WindowsFileSystem.java:255)
              at java.nio.file.Paths.get(Paths.java:84)
              at org.sonar.scanner.scan.ProjectReactorBuilder.resolvePath(ProjectReactorBuilder.java:395)
              at org.sonar.scanner.scan.ProjectReactorBuilder.checkExistenceOfPaths(ProjectReactorBuilder.java:385)
              at org.sonar.scanner.scan.ProjectReactorBuilder.cleanAndCheckModuleProperties(ProjectReactorBuilder.java:368)
              at org.sonar.scanner.scan.ProjectReactorBuilder.cleanAndCheckProjectDefinitions(ProjectReactorBuilder.java:334)
              at org.sonar.scanner.scan.ProjectReactorBuilder.execute(ProjectReactorBuilder.java:126)
              at org.sonar.scanner.scan.MutableProjectReactorProvider.provide(MutableProjectReactorProvider.java:30)
              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.picocontainer.injectors.MethodInjector.invokeMethod(MethodInjector.java:129)
              at org.picocontainer.injectors.MethodInjector.access$000(MethodInjector.java:39)
              at org.picocontainer.injectors.MethodInjector$2.run(MethodInjector.java:113)
              at org.picocontainer.injectors.AbstractInjector$ThreadLocalCyclicDependencyGuard.observe(AbstractInjector.java:270)
              at org.picocontainer.injectors.MethodInjector.decorateComponentInstance(MethodInjector.java:120)
              at org.picocontainer.injectors.CompositeInjector.decorateComponentInstance(CompositeInjector.java:58)
              at org.picocontainer.injectors.Reinjector.reinject(Reinjector.java:142)
              at org.picocontainer.injectors.ProviderAdapter.getComponentInstance(ProviderAdapter.java:96)
              at org.picocontainer.DefaultPicoContainer.getInstance(DefaultPicoContainer.java:699)
              at org.picocontainer.DefaultPicoContainer.getComponent(DefaultPicoContainer.java:647)
              at org.sonar.core.platform.ComponentContainer$ExtendedDefaultPicoContainer.getComponent(ComponentContainer.java:69)
              ... 37 more
      ERROR:
      ERROR: Re-run SonarQube Scanner using the -X switch to enable full debug logging.
  
      C:\Users\remy.fischer\Desktop\NetBeansProjects\NetBeansProjects\BinPacking\sonar-scanner-3.0.3.778-windows\bin&gt;
  </code></pre>
  
  <p>I don't know what to do, I've try many things that i've seen here but nothing is working unfortunately..</p>