I regret that I have no additional information concerning this issue – the
exception below is all I get when commencing a build.

Last Build : #18
FATAL: remote file operation failed
hudson.util.IOException2: remote file operation failed
at hudson.FilePath.act(FilePath.java:672)
at hudson.FilePath.act(FilePath.java:660)
at hudson.plugins.git.GitSCM.checkout(GitSCM.java:358)
at hudson.model.AbstractProject.checkout(AbstractProject.java:898)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:400)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:349)
at hudson.model.Run.run(Run.java:1090)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:301)
at hudson.model.ResourceController.execute(ResourceController.java:93)
at hudson.model.Executor.run(Executor.java:122)
Caused by: java.io.IOException: Remote call failed
at hudson.remoting.Channel.call(Channel.java:524)
at hudson.FilePath.act(FilePath.java:667)
... 9 more
Caused by: java.lang.NoClassDefFoundError: hudson/plugins/git/GitException
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2291)
at java.lang.Class.getDeclaredField(Class.java:1880)
at java.io.ObjectStreamClass.getDeclaredSUID(ObjectStreamClass.java:1610)
at java.io.ObjectStreamClass.access$700(ObjectStreamClass.java:52)
at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:425)
at java.security.AccessController.doPrivileged(Native Method)
at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:413)
at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:310)
at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:547)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at hudson.remoting.UserRequest.perform(UserRequest.java:87)
at hudson.remoting.UserRequest.perform(UserRequest.java:47)
at hudson.remoting.Request$2.run(Request.java:236)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: hudson.plugins.git.GitException
at
hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch(RemoteClassLoader.java:275)
at sun.reflect.GeneratedMethodAccessor660.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at
hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:274)
at hudson.remoting.Request$2.run(Request.java:236)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)