com.tridion.util.TridionReflectionException: Unable to load request class, was not found on classpath

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Solutions on the web

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Unable to load request class, was not found on classpath
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Unable to load request class, was not found on classpath
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Unable to load request class, was not found on classpath
com.tridion.util.TridionReflectionException: Unable to load request class, was not found on classpath	at com.tridion.util.ReflectionUtil.loadClassInstanceWithTypes(ReflectionUtil.java:67)[cd_core.jar:na]	at com.tridion.deployer.ModuleFactory.createModule(ModuleFactory.java:109)[cd_deployer.jar:na]	at com.tridion.deployer.Processor.configure(Processor.java:81)[cd_deployer.jar:na]	at com.tridion.deployer.Processor.<init>(Processor.java:65)[cd_deployer.jar:na]	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)[na:1.7.0]	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)[na:1.7.0]	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)[na:1.7.0]	at java.lang.reflect.Constructor.newInstance(Unknown Source)[na:1.7.0]	at com.tridion.util.ReflectionUtil.loadClassInstanceWithTypes(ReflectionUtil.java:65)[cd_core.jar:na]	at com.tridion.util.ReflectionUtil.loadClassInstance(ReflectionUtil.java:108)[cd_core.jar:na]	at com.tridion.deployer.ProcessorFactory.createProcessor(ProcessorFactory.java:130)[cd_deployer.jar:na]	at com.tridion.deployer.ProcessorFactory.createProcessors(ProcessorFactory.java:114)[cd_deployer.jar:na]	at com.tridion.deployer.workers.ProcessorWorker.doWork(ProcessorWorker.java:56)[cd_deployer.jar:na]	at com.tridion.deployer.phases.CommitPhase.onSuccess(CommitPhase.java:116)[cd_deployer.jar:na]	at com.tridion.deployer.phases.DeployPipelineExecutor.runSafeEvent(DeployPipelineExecutor.java:240)[cd_deployer.jar:na]	at com.tridion.deployer.phases.DeployPipelineExecutor.doExecute(DeployPipelineExecutor.java:101)[cd_deployer.jar:na]	at com.tridion.deployer.phases.DeployPipelineExecutor.execute(DeployPipelineExecutor.java:64)[cd_deployer.jar:na]	at com.tridion.deployer.TransactionManager.handleDeployPackage(TransactionManager.java:82)[cd_deployer.jar:na]	at com.tridion.deployer.queue.QueueLocationHandler$1.run(QueueLocationHandler.java:180)[cd_deployer.jar:na]	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)[na:1.7.0]	at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)[na:1.7.0]	at java.util.concurrent.FutureTask.run(Unknown Source)[na:1.7.0]	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)[na:1.7.0]	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)[na:1.7.0]	at java.lang.Thread.run(Unknown Source)[na:1.7.0]Caused by: java.lang.ClassNotFoundException: com.sdl.context.deployer.ContextExpressionDeploy	at java.net.URLClassLoader$1.run(Unknown Source)[na:1.7.0]	at java.net.URLClassLoader$1.run(Unknown Source)[na:1.7.0]	at java.security.AccessController.doPrivileged(Native Method)[na:1.7.0]	at java.net.URLClassLoader.findClass(Unknown Source)[na:1.7.0]	at java.lang.ClassLoader.loadClass(Unknown Source)[na:1.7.0]	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)[na:1.7.0]	at java.lang.ClassLoader.loadClass(Unknown Source)[na:1.7.0]	at java.lang.Class.forName0(Native Method)[na:1.7.0]	at java.lang.Class.forName(Unknown Source)[na:1.7.0]	at com.tridion.util.ReflectionUtil.loadClassInstanceWithTypes(ReflectionUtil.java:61)[cd_core.jar:na]	... 24 more