We have the same issue with Appointment from. There is error log info:
Exception generated at: 03.04.2014 9:33:27
Error Type: System.Web.HttpException
Error Message: Error executing child request for /_forms/read/page.aspx.
Error Stack Trace:
at HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) ilOffset = 0x45B
at HttpServerUtility.Execute(String path, TextWriter writer, Boolean preserveForm) ilOffset = 0x204
at HttpServerUtility.Transfer(String path) ilOffset = 0x18
at Control.PreRenderRecursiveInternal() ilOffset = 0x54
at Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) ilOffset = 0x967
at Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) ilOffset = 0x69
at Page.ProcessRequest() ilOffset = 0x14
at Page.ProcessRequest(HttpContext context) ilOffset = 0x33
at CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() ilOffset = 0x18D
at HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) ilOffset = 0x15
InnerException:
Error Type: System.Web.HttpUnhandledException
Error Message: Exception of type 'System.Web.HttpUnhandledException' was thrown.
Error Stack Trace:
at Page.HandleError(Exception e) ilOffset = 0x11C
at Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) ilOffset = 0x967
at Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) ilOffset = 0x69
at Page.ProcessRequest() ilOffset = 0x14
at Page.ProcessRequest(HttpContext context) ilOffset = 0x33
at HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) ilOffset = 0x36A
InnerException:
Error Type: System.ArgumentNullException
Error Message: Value cannot be null.
Parameter name: g
Error Stack Trace:
at Guid..ctor(String g) ilOffset = 0x35
at ControlDescriptor..ctor(XmlNode formNode, EntityMetadata entityMetadata, FormDescriptor formDescriptor, CellDescriptor parentCellDescriptor, IOrganizationContext context) ilOffset = 0x6B
at CellDescriptor..ctor(XmlNode formNode, EntityMetadata entityMetadata, FormDescriptor formDescriptor, TabDescriptor containerTab, Boolean isInFirstColumn, Boolean isInLastColumn) ilOffset = 0x65
at CellCollection..ctor(XmlNodeList nodes, EntityMetadata entityMetadata, FormDescriptor formDescriptor, TabDescriptor containerTab) ilOffset = 0x24
at RowDescriptor..ctor(IXPathNavigable node, EntityMetadata entityMetadata, FormDescriptor formDescriptor, Boolean rowVisible, TabDescriptor containerTab) ilOffset = 0x23
at RowCollection..ctor(XmlNodeList nodes, EntityMetadata entityMetadata, FormDescriptor formDescriptor, Int32 sectionColumns, TabDescriptor containerTab) ilOffset = 0x38
at SectionCollection..ctor(XmlNodeList nodes, EntityMetadata entityMetadata, FormDescriptor formDescriptor, TabDescriptor containerTab) ilOffset = 0x12
at ColumnDescriptor..ctor(XmlNode columnNode, EntityMetadata entityMetadata, FormDescriptor formDescriptor, TabDescriptor containerTab) ilOffset = 0x5A
at ColumnCollection..ctor(XmlNodeList nodes, EntityMetadata entityMetadata, FormDescriptor formDescriptor, TabDescriptor containerTab) ilOffset = 0x1B
at TabDescriptor..ctor(XmlNode formNode, EntityMetadata entityMetadata, FormDescriptor formDescriptor) ilOffset = 0xAA
at TabCollection..ctor(XmlNode formNode, EntityMetadata entityMetadata, FormDescriptor formDescriptor) ilOffset = 0x2F
at FormDescriptor.InitializeObjectModel(XmlNode formNode, EntityMetadata entityMetadata, FormType formType) ilOffset = 0x41
at FormDescriptor.Initialize(EntityMetadata entityMetadata, XmlNode formXml, Guid formId, FormType formType) ilOffset = 0x144
at FormDescriptor..ctor(EntityMetadata entityMetadata, XmlNode formXml, Guid formId, FormType formType, Boolean isUserForm, IOrganizationContext context) ilOffset = 0x5C
at FormDescriptor..ctor(Int32 typeCode, XmlNode formXml, Guid formId, FormType formType, Int64 versionNumber, FormPresentationMode formPresentation, IOrganizationContext context) ilOffset = 0x1F
at FormDescriptorLoader.LoadCacheData(FormDescriptorCacheKey key, IOrganizationContext context) ilOffset = 0x15D
at CrmSharedMultiOrgCache`2.LookupEntry(TKey key, IOrganizationContext context) ilOffset = 0x9A
at FormDescriptorCache.GetFormDescriptor(Guid formId, IOrganizationContext context) ilOffset = 0x5D
at AppFormFilter.GetSingleForm(Int32 entityTypeCode, FormType formType, Boolean useSystemUserContext) ilOffset = 0x19
at ReadFormDataBuilder..ctor(String recordId, String entityTypeCode, Guid formId, FormFactor formFactor) ilOffset = 0xB0
at ReadFormDataBuilder..ctor(String recordId, String entityTypeCode, FormFactor formFactor) ilOffset = 0x9
at ReadFormPage.PopulateFormDescriptorAndDataBuilder() ilOffset = 0x193
at ReadFormPage.OnPreInit() ilOffset = 0x95
at AppPage.OnInit(EventArgs e) ilOffset = 0xA
at Control.InitRecursive(Control namingContainer) ilOffset = 0xFF
at Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) ilOffset = 0x2CD
Stack Frame:
at EventHandler.Invoke(Object sender, EventArgs e) ilOffset = 0xFFFFFFFF
at HttpApplication.RaiseOnError() ilOffset = 0x26
at ApplicationStepManager.ResumeSteps(Exception error) ilOffset = 0x85
at HttpApplication.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) ilOffset = 0x5C
at HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) ilOffset = 0x16A
at ISAPIRuntime.ProcessRequest(IntPtr ecb, Int32 iWRType) ilOffset = 0x4B
Exception Data:
1: Key type: System.String, value: ASPIMPERSONATING
1: Value type: System.String, value:
Any suggestions how to resolve this issue?