# \[system.err\] Error: Could not find or load main class org.sonar.runner.Main **URL:** \ **Category:** Help/Discuss\ **Tags:** sonarqube\ **Created:** [March 10, 2016, 6:35am UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084 "2016-03-10T06:35:45Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![kamal2222ahmed](https://avatars.discourse-cdn.com/v4/letter/k/e36b37/32.png) [@kamal2222ahmed](https://discuss.gradle.org/u/kamal2222ahmed)\ **Post date:** [March 10, 2016, 6:35am UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/1 "2016-03-10T06:35:45Z")
I am trying to upgrade sonar-runner from 2.4 to 2.5, using gradle version 2.3 here is the snippet from build.gradle: classpath ‘org.codehaus.sonar.runner:sonar-runner-dist:2.5’ and i use the following to upload the sonar-runner-dist-2.5.jar org.codehaus.sonar.runner sonar-runner-dist 2.5 to nexus but cannot seem to run sonar-runner ---
**Author:** ![bmuschko](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/bmuschko/32/5458_2.png) [@bmuschko](https://discuss.gradle.org/u/bmuschko)\ **Post date:** [March 11, 2016, 9:17pm UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/2 "2016-03-11T21:17:52Z")
You’ll need to change the version via the exposed DSL: ``` sonarRunner { toolVersion = '2.5' } ``` For more information please see the [plugin’s documentation page](https://docs.gradle.org/current/userguide/sonar_runner_plugin.html). ---
**Author:** ![kamal2222ahmed](https://avatars.discourse-cdn.com/v4/letter/k/e36b37/32.png) [@kamal2222ahmed](https://discuss.gradle.org/u/kamal2222ahmed)\ **Post date:** [March 11, 2016, 10:16pm UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/3 "2016-03-11T22:16:12Z")
Thanks for your response @bmuschko in build.gradle ``` sonarRunner{ toolVersion = "2.5" sonarProperties{ property "sonar.analysis.mode", "preview" property "sonar.issuesReport.html.enable", "true" property "sonar.cobertura.reportPath", file("${projectDir}/build/reports/cobertura/coverage.xml") ``` its there ---
**Author:** ![kamal2222ahmed](https://avatars.discourse-cdn.com/v4/letter/k/e36b37/32.png) [@kamal2222ahmed](https://discuss.gradle.org/u/kamal2222ahmed)\ **Post date:** [March 11, 2016, 10:22pm UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/4 "2016-03-11T22:22:34Z")
could it be a $CLASSPATH issue ? since i am running the gradle command on linux host A, and the sonarQube is on host B, and Nexus is on host C i also manually copy the sonar-runner-dist-2.5.jar file on host A, and run the command manually like: java -jar sonar-runner-dist-2.5.jar INFO: Runner configuration file: NONE INFO: Project configuration file: NONE INFO: SonarQube Runner 2.5-RC1 INFO: Java 1.7.0\_80 Oracle Corporation (64-bit) INFO: Linux 2.6.32-504.1.3.el6.x86\_64 amd64 to see if the jar is ok. But HOW would gradle task know where is the jar file and how to run it ? unless the $CLASSPATH is set ? but since gradle would download the jar file upon execution, not sure how i would setup the $CLASSPATH for java to know where the jar is. Makes sense ? ---
**Author:** ![bmuschko](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/bmuschko/32/5458_2.png) [@bmuschko](https://discuss.gradle.org/u/bmuschko)\ **Post date:** [March 11, 2016, 10:30pm UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/5 "2016-03-11T22:30:35Z")
Possibly the SonarQube project moved the main class to a different package or renamed it. If you look at the contents of the JAR file, do you find this class? ---
**Author:** ![kamal2222ahmed](https://avatars.discourse-cdn.com/v4/letter/k/e36b37/32.png) [@kamal2222ahmed](https://discuss.gradle.org/u/kamal2222ahmed)\ **Post date:** [March 11, 2016, 10:38pm UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/6 "2016-03-11T22:38:42Z")
not sure where to look: unzip sonar-runner-dist-2.5.jar Archive: sonar-runner-dist-2.5.jar creating: META-INF/ inflating: META-INF/MANIFEST.MF creating: org/ creating: org/sonar/ creating: org/sonar/runner/ creating: org/sonar/runner/cli/ inflating: org/sonar/runner/cli/RunnerFactory$1.class inflating: org/sonar/runner/cli/Shutdown$ShutdownHook.class inflating: org/sonar/runner/cli/Logs.class inflating: org/sonar/runner/cli/Shutdown.class inflating: org/sonar/runner/cli/RunnerFactory.class inflating: org/sonar/runner/cli/Conf.class inflating: org/sonar/runner/cli/SystemInfo$System2.class inflating: org/sonar/runner/cli/Shutdown$1.class inflating: org/sonar/runner/cli/SystemInfo.class inflating: org/sonar/runner/cli/package-info.class inflating: org/sonar/runner/cli/Main.class inflating: org/sonar/runner/cli/Stats.class inflating: org/sonar/runner/cli/Cli.class inflating: org/sonar/runner/cli/RunnerFactory$DefaultLogOutput.class inflating: org/sonar/runner/cli/Exit.class creating: META-INF/maven/ creating: META-INF/maven/org.sonarsource.sonar-runner/ creating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-dist/ inflating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-dist/pom.xml inflating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-dist/pom.properties inflating: sonar-runner-batch.jar creating: org/sonar/runner/impl/ inflating: org/sonar/runner/impl/IsolatedLauncherProxy.class inflating: org/sonar/runner/impl/IsolatedLauncherFactory.class inflating: org/sonar/runner/impl/JarDownloader.class inflating: org/sonar/runner/impl/VersionUtils.class inflating: org/sonar/runner/impl/JarExtractor.class inflating: org/sonar/runner/impl/IsolatedLauncherFactory$1.class inflating: org/sonar/runner/impl/TempCleaning.class inflating: org/sonar/runner/impl/IsolatedClassloader.class inflating: org/sonar/runner/impl/package-info.class inflating: org/sonar/runner/impl/Jars$BatchFileDownloader.class inflating: org/sonar/runner/impl/Jars.class inflating: org/sonar/runner/impl/ServerConnection.class inflating: org/sonar/runner/impl/SimulatedLauncher.class inflating: org/sonar/runner/impl/ClassloadRules.class inflating: org/sonar/runner/impl/RunnerException.class creating: org/sonar/runner/cache/ inflating: org/sonar/runner/cache/FileCache.class inflating: org/sonar/runner/cache/FileCache$Downloader.class inflating: org/sonar/runner/cache/DeleteFileOnCloseInputStream.class inflating: org/sonar/runner/cache/DirectoryLock.class inflating: org/sonar/runner/cache/FileHashes.class inflating: org/sonar/runner/cache/package-info.class inflating: org/sonar/runner/cache/PersistentCache.class inflating: org/sonar/runner/cache/FileCacheBuilder.class inflating: org/sonar/runner/cache/Logger.class inflating: org/sonar/runner/cache/PersistentCacheBuilder.class inflating: org/sonar/runner/cache/PersistentCache$1.class inflating: org/sonar/runner/cache/TTLCacheInvalidation.class inflating: org/sonar/runner/cache/PersistentCache$DirectoryCleanFilter.class inflating: org/sonar/runner/cache/PersistentCache$DirectoryClearFilter.class inflating: org/sonar/runner/cache/PersistentCacheInvalidation.class creating: org/sonar/runner/api/ inflating: org/sonar/runner/api/IssueListenerAdapter.class inflating: org/sonar/runner/api/LogOutput$Level.class inflating: org/sonar/runner/api/Dirs.class inflating: org/sonar/runner/api/Utils$1.class inflating: org/sonar/runner/api/IssueListener.class inflating: org/sonar/runner/api/EmbeddedRunner.class inflating: org/sonar/runner/api/EmbeddedRunner$1.class inflating: org/sonar/runner/api/LogOutput.class inflating: org/sonar/runner/api/package-info.class inflating: org/sonar/runner/api/Issue.class inflating: org/sonar/runner/api/RunnerVersion.class inflating: org/sonar/runner/api/Issue$1.class inflating: org/sonar/runner/api/Utils.class inflating: org/sonar/runner/api/version.txt inflating: org/sonar/runner/api/Utils$DeleteQuietlyFileVisitor.class inflating: org/sonar/runner/api/Issue$Builder.class inflating: org/sonar/runner/api/LoggerAdapter.class creating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-api/ inflating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-api/pom.xml inflating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-api/pom.properties creating: org/sonar/runner/kevinsawicki/ inflating: org/sonar/runner/kevinsawicki/HttpRequest$1.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$10.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$2.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$3.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$4.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$5.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$6.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$7.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$8.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$9.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$Base64.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$CloseOperation.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$FlushOperation.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$HttpRequestException.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$Operation.class inflating: org/sonar/runner/kevinsawicki/HttpRequest$RequestOutputStream.class inflating: org/sonar/runner/kevinsawicki/HttpRequest.class creating: META-INF/maven/com.github.kevinsawicki/ creating: META-INF/maven/com.github.kevinsawicki/http-request/ inflating: META-INF/maven/com.github.kevinsawicki/http-request/pom.xml inflating: META-INF/maven/com.github.kevinsawicki/http-request/pom.properties inflating: META-INF/LICENSE.txt inflating: META-INF/NOTICE.txt creating: org/sonar/runner/commonsio/ inflating: org/sonar/runner/commonsio/Charsets.class inflating: org/sonar/runner/commonsio/FileExistsException.class creating: org/sonar/runner/commonsio/filefilter/ inflating: org/sonar/runner/commonsio/filefilter/AbstractFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/AgeFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/AndFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/ConditionalFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/DelegateFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/DirectoryFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/FalseFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/FileFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/FileFilterUtils.class inflating: org/sonar/runner/commonsio/filefilter/IOFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/MagicNumberFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/NameFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/NotFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/OrFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/PrefixFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/SizeFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/SuffixFileFilter.class inflating: org/sonar/runner/commonsio/filefilter/TrueFileFilter.class inflating: org/sonar/runner/commonsio/FilenameUtils.class inflating: org/sonar/runner/commonsio/FileUtils.class creating: org/sonar/runner/commonsio/input/ inflating: org/sonar/runner/commonsio/input/ClosedInputStream.class inflating: org/sonar/runner/commonsio/IOCase.class inflating: org/sonar/runner/commonsio/IOUtils.class inflating: org/sonar/runner/commonsio/LineIterator.class creating: org/sonar/runner/commonsio/output/ inflating: org/sonar/runner/commonsio/output/ByteArrayOutputStream.class inflating: org/sonar/runner/commonsio/output/NullOutputStream.class inflating: org/sonar/runner/commonsio/output/StringBuilderWriter.class creating: META-INF/maven/commons-io/ creating: META-INF/maven/commons-io/commons-io/ inflating: META-INF/maven/commons-io/commons-io/pom.xml inflating: META-INF/maven/commons-io/commons-io/pom.properties creating: org/sonar/runner/batch/ inflating: org/sonar/runner/batch/LogOutput$Level.class inflating: org/sonar/runner/batch/IssueListener$Issue.class inflating: org/sonar/runner/batch/IssueListener.class inflating: org/sonar/runner/batch/LogOutput.class inflating: org/sonar/runner/batch/IsolatedLauncher.class creating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-batch-interface/ inflating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-batch-interface/pom.xml inflating: META-INF/maven/org.sonarsource.sonar-runner/sonar-runner-batch-interface/pom.properties ---
**Author:** ![bmuschko](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/bmuschko/32/5458_2.png) [@bmuschko](https://discuss.gradle.org/u/bmuschko)\ **Post date:** [March 11, 2016, 10:47pm UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/7 "2016-03-11T22:47:18Z")
I only see the class `org/sonar/runner/cli/Main.class` which doesn’t line up with the [hard-coded class name in the plugin](https://github.com/gradle/gradle/blob/master/subprojects/sonar/src/main/groovy/org/gradle/sonar/runner/tasks/SonarRunner.java#L57). That’s why it is failing for you. The plugin code is not compatible with the library version anymore. BTW: The SonarRunner plugin in Gradle core is superseded by an [external plugin](https://github.com/SonarSource/sonar-gradle). Please use the external plugin. They might have fixed the issue. ---
**Author:** ![kamal2222ahmed](https://avatars.discourse-cdn.com/v4/letter/k/e36b37/32.png) [@kamal2222ahmed](https://discuss.gradle.org/u/kamal2222ahmed)\ **Post date:** [March 14, 2016, 2:25pm UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/8 "2016-03-14T14:25:50Z")
git diff build.gradle diff --git a/build.gradle b/build.gradle > ``` > index 111f1ed..b6e9f2a 100644 > — a/build.gradle > +++ b/build.gradle > @@ -90,7 +90,8 @@ buildscript { > } > dependencies > { classpath 'gov.dhs.uscis.elis2:crypto-plugin:0.1.4' - classpath 'org.codehaus.sonar.runner:sonar-runner-dist:2.4' + //classpath 'org.codehaus.sonar.runner:sonar-runner-dist:2.5' + classpath 'org.sonarsource.scanner.gradle:sonarqube-gradle-plugin:2.5' classpath 'net.saliman:gradle-cobertura-plugin:2.2.7' } > @@ -139,7 +140,7 @@ subprojects { > if(sonarProjects.contains(project.getPath()) && rootProject.hasProperty('sonar') ){ > apply plugin: 'net.saliman.cobertura' > apply plugin: 'sonar-runner' > + apply plugin: 'org.sonarqube' > cobertura { > coverageDirs << file("$ > {projectDir}/build/classes/main") > @@ -149,9 +150,9 @@ subprojects { > } > project.tasks.generateCoberturaReport.outputs.file file("${projectDir} > /build/reports/cobertura/coverage.xml") > project.tasks.cobertura.outputs.dir file("$ > {projectDir}/build/cobertura") > - > - sonarRunner{ > - toolVersion = "2.4" > + > + sonarqube{ > + toolVersion = "2.5" > sonarProperties{ > property "sonar.analysis.mode", "preview" > property "sonar.issuesReport.html.enable", "true" > @@ -165,8 +166,8 @@ subprojects { > systemProperty "sonar.host.url", "http://${sonar}" > systemProperty "project.settings","${projectDir} > /build/tmp/sonarRunner/sonar-project.properties" > environment = System.getenv() > maxHeapSize = '768m' > jvmArgs '-XX:MaxPermSize=256m' > + maxHeapSize = '2048m' > + jvmArgs '-XX:MaxPermSize=2048m' > } > } > > ``` and i get error: /opt/gradle/gradle-2.7/bin/gradle -PcodeCoverageType=xml -Ptls.key.store=/opt/keystore/JavaKeyStore.jks -Ptls.trusted.store=/opt/keystore/JavaKeyStore.jks -PpbeKeyFile=/elis2/apps/Shared/Crypto/src/main/resources/pbe.dat -PreleaseDeploy=false -Dorg.gradle.daemon=true :noINT :Backend:Elis2Services:sonarqube properties decrypted with keyfile /elis2/apps/Shared/Crypto/src/main/resources/pbe.dat Incremental java compilation is an incubating feature. FAILURE: Build failed with an exception. Where: Build file ‘/elis2/apps/build.gradle’ line: 143 What went wrong: A problem occurred evaluating root project ‘apps’. \> Plugin with id ‘sonarqube’ not found. Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. BUILD FAILED Total time: 17.665 secs This is what i use in Nexus: org.codehaus.sonar.scanner sonar-runner-cli 2.5 and upload the following jar in the lib folder: [https://sonarsource.bintray.com/Distribution/sonar-scanner-cli/sonar-scanner-2.5.zip](https://sonarsource.bintray.com/Distribution/sonar-scanner-cli/sonar-scanner-2.5.zip) ---
**Author:** ![bmuschko](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/bmuschko/32/5458_2.png) [@bmuschko](https://discuss.gradle.org/u/bmuschko)\ **Post date:** [March 14, 2016, 3:23pm UTC](https://discuss.gradle.org/t/system-err-error-could-not-find-or-load-main-class-org-sonar-runner-main/15084/9 "2016-03-14T15:23:27Z")
Looks like you are already using the external SonarQube plugin. In this case I’d suggest you ask on their project forum/GitHub. BTW: For future posts could you please properly format your code snippet. They are pretty much unreadable which makes it hard for someone to help.