Unexpected Error

This was not supposed to happen. Please provide the error details to your  TeamCity server maintainer.
If you maintain this TeamCity installation please  report this error to JetBrains.

Trace: org.apache.jasper.JasperException: /plugins/command.line/commandlineSettings.jsp (line: 70, column: 4) Attribute className invalid for tag saving according to TLD
     at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42)
     at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:408)
     at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:237)
     at org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1260)
     at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:870)
     at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1539)
     at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
     at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
     at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:690)
     at org.apache.jasper.compiler.Node$NamedAttribute.accept(Node.java:1908)
     at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
     at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
     at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:889)
     at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1539)
     at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
     at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
     at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)
     at org.apache.jasper.compiler.Node$Root.accept(Node.java:475)
     at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
     at org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1790)
     at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:217)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
     at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
     at jetbrains.spring.web.TeamCityJSPServletImpl.service(TeamCityJSPServletImpl.java:7)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
     at jetbrains.spring.web.JspController.doHandle(JspController.java:13)
     at jetbrains.buildServer.controllers.BaseController.handleRequestInternal(BaseController.java:74)
     at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
     at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
     at jetbrains.buildServer.rootDispatcher.TeamCityDispatcherServlet.service(TeamCityDispatcherServlet.java:96)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
     at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
     at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
     at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
     at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
     at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
     at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
     at jetbrains.buildServer.rootDispatcher.TeamCityDispatcherServlet.service(TeamCityDispatcherServlet.java:96)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
     at jetbrains.buildServer.web.DisableSessionIdFromUrlFilter.doFilter(DisableSessionIdFromUrlFilter.java:6)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
     at jetbrains.buildServer.web.DiagnosticFilter.runChainWithModifiedThreadName(DiagnosticFilter.java:61)
     at jetbrains.buildServer.web.DiagnosticFilter.doFilter(DiagnosticFilter.java:12)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
     at jetbrains.buildServer.web.ResponseFragmentFilter.doFilter(ResponseFragmentFilter.java:4)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
     at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
     at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)
     at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)