Could not generate a proxy class for class org.jfrog.gradle.plugin.artifactory.task.ExtractModuleTask

I am new in DevOps and would like to know what does this failure means?

09:48:22 FAILURE: Build failed with an exception. 09:48:22 09:48:22 *
Where:
09:48:22 Initialization script ‘/home/jenkins_slave/workspace/evocation-list-based-on-live-url@tmp/artifactory/init-artifactory6640262393740620162gradle’ line: 23 09:48:22 09:48:22 *

What went wrong:
09:48:22 Failed to apply plugin [class ‘org.jfrog.gradle.plugin.artifactory.ArtifactoryPlugin’] 09:48:22 > Could not generate a proxy class for class org.jfrog.gradle.plugin.artifactory.task.ExtractModuleTask.

More Details:
17:11:49.937 [DEBUG] [org.gradle.initialization.ProjectPropertySettingBuildLoader] project property file does not exists. We continue!
17:11:49.937 [INFO] [org.gradle.internal.buildevents.BuildLogger] Projects loaded. Root project using build file ‘/home/jenkins_slave/workspace/itigate-security-vulnerability_2/build.gradle’.
17:11:49.938 [INFO] [org.gradle.internal.buildevents.BuildLogger] Included projects: [root project ‘itigate-security-vulnerability_2’, project ‘:forescout-service-client’, project ‘:forescout-ui’]
17:11:49.970 [DEBUG] [org.gradle.api.Project] Artifactory plugin: projectsEvaluated: itigate-security-vulnerability_2
17:11:50.060 [DEBUG] [org.jfrog.gradle.plugin.artifactory.ArtifactoryPluginBase] Configuring artifactoryPublish task for project :: is root? true
17:11:50.086 [DEBUG] [org.gradle.model.internal.registry.DefaultModelRegistry] Project : - Registering model element ‘tasks.artifactoryPublish’ (hidden = false)
17:11:50.092 [DEBUG] [org.jfrog.gradle.plugin.artifactory.ArtifactoryPluginBase] Configuring extractModuleInfo task for project :
17:11:50.108 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
17:11:50.108 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build failed with an exception.
17:11:50.108 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
17:11:50.109 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Where:
17:11:50.109 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Initialization script ‘/home/jenkins_slave/workspace/itigate-security-vulnerability_2@tmp/artifactory/init-artifactory3954017990334936959gradle’ line: 23
17:11:50.109 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
17:11:50.109 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * What went wrong:
17:11:50.110 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Failed to apply plugin [class ‘org.jfrog.gradle.plugin.artifactory.ArtifactoryPlugin’]
17:11:50.110 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] > Could not generate a proxy class for class org.jfrog.gradle.plugin.artifactory.task.ExtractModuleTask.
17:11:50.110 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
17:11:50.110 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Try:
17:11:50.111 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Run with --stacktrace option to get the stack trace.
17:11:50.112 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger]
17:11:50.112 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger] BUILD FAILED
17:11:50.112 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger]
17:11:50.113 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger] Total time: 5.556 secs