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  • Kiran 17 posts 109 karma points
    Feb 05, 2021 @ 12:05
    Kiran
    0

    Content Migration from Umbraco v7.15.6 to v8.1.0

    Hi Everyone,

    When we are trying to upgrade the umbraco version 7.15.6 to 8.1.0 by following the below link

    https://our.umbraco.com/documentation/getting-started/setup/upgrading/migrating-to-v8

    But we are getting error, Please find the below log for your reference.

    {"@t":"2021-02-05T11:40:47.8663621Z","@mt":"Execute {MigrationType}","MigrationType":"ConvertRelatedLinksToMultiUrlPicker","SourceContext":"Umbraco.Core.Migrations.MigrationPlan","ProcessId":4324,"ProcessName":"iisexpress","ThreadId":63,"AppDomainId":4,"AppDomainAppId":"LMW3SVC2ROOT","MachineName":"DESKTOP-NCFRDII","Log4NetLevel":"INFO ","HttpRequestNumber":9,"HttpRequestId":"21c1503a-98ce-451a-a2b7-86d10aa8f2a1"}
    

    {"@t":"2021-02-05T11:41:30.0614511Z","@mt":"Database configuration failed","@l":"Error","@x":"System.NullReferenceException: Object reference not set to an instance of an object.\r\n at Umbraco.Core.Migrations.Upgrade.V800.ConvertRelatedLinksToMultiUrlPicker.Migrate()\r\n at Umbraco.Core.Migrations.MigrationBase.Umbraco.Core.Migrations.IMigration.Migrate()\r\n at Umbraco.Core.Migrations.MigrationPlan.Execute(IScope scope, String fromState, IMigrationBuilder migrationBuilder, ILogger logger)\r\n at Umbraco.Core.Migrations.Upgrade.Upgrader.Execute(IScopeProvider scopeProvider, IMigrationBuilder migrationBuilder, IKeyValueService keyValueService, ILogger logger)\r\n at Umbraco.Core.Migrations.Install.DatabaseBuilder.UpgradeSchemaAndData(MigrationPlan plan)","SourceContext":"Umbraco.Core.Migrations.Install.DatabaseBuilder","ProcessId":4324,"ProcessName":"iisexpress","ThreadId":63,"AppDomainId":4,"AppDomainAppId":"LMW3SVC2ROOT","MachineName":"DESKTOP-NCFRDII","Log4NetLevel":"ERROR","HttpRequestNumber":9,"HttpRequestId":"21c1503a-98ce-451a-a2b7-86d10aa8f2a1"} {"@t":"2021-02-05T11:41:30.0624504Z","@mt":"The database schema validation produced the following summary: {DbSchemaSummary}","DbSchemaSummary":"The following tables were found in the database, but are not in the current schema:\r\nUFRecordDataDateTime,UFUserSecurity,UFUserFormSecurity,TranslatorUsers,TranslateJobs,BlogNewsLetterEmail,TranslateSets,cmsContent,TranslateProperties,TranslateNodes,TranslateJobNodes,cmsContentVersion,cmsContentXml,cmsDataType,cmsDataTypePreValues,cmsDocument,cmsMedia,cmsPreviewXml,cmsPropertyData,cmsTask,cmsTaskType,dbo.MovieLikes,EnquiryTBL,eventdetailsform,NewsSettlerDetails,nsEmailTrackingItems,nsNewsletters,nsSubscribers,nsSubscriptions,nsTrackingItems,umbracoDomains,umbracoMigration,WorkflowSettings,WorkflowUserGroups,WorkflowUser2UserGroup,UFRecords,WorkflowUserGroupPermissions,UFRecordFields,WorkflowInstance,UFRecordDataString,WorkflowTaskInstance,UFRecordDataLongString,UFRecordDataInteger,UFRecordDataBit,ContactDetails,umbracoContent,umbracoContentVersion,umbracoMediaVersion,umbracoDocument,umbracoDataType,umbracoDomain,umbracoPropertyData,cmsContentNu,umbracoDocumentVersion,umbracoKeyValue,umbracoContentVersionCultureVariation,umbracoDocumentCultureVariation,umbracoContentSchedule\r\n \r\nThe following columns were found in the database, but are not in the current schema:\r\nUFRecordDataDateTime,Id,UFRecordDataDateTime,Key,UFRecordDataDateTime,Value,UFUserSecurity,User,UFUserSecurity,ManageDataSources,UFUserSecurity,ManagePreValueSources,UFUserSecurity,ManageWorkflows,UFUserSecurity,ManageForms,UFUserFormSecurity,Id,UFUserFormSecurity,User,UFUserFormSecurity,Form,UFUserFormSecurity,HasAccess,UFUserFormSecurity,AllowInEditor,UFUserFormSecurity,SecurityType,TranslatorUsers,id,TranslatorUsers,userId,TranslatorUsers,nodeId,TranslatorUsers,cultureName,TranslateJobs,id,TranslateJobs,key,TranslateJobs,name,TranslateJobs,sourceCultureId,TranslateJobs,sourceCultureName,TranslateJobs,targetCultureId,TranslateJobs,targetCultureName,TranslateJobs,created,TranslateJobs,submitted,TranslateJobs,recevied,TranslateJobs,accepted,TranslateJobs,status,TranslateJobs,providerKey,TranslateJobs,providerName,TranslateJobs,providerProps,TranslateJobs,setKey,TranslateJobs,translator,TranslateJobs,userId,TranslateJobs,groupId,BlogNewsLetterEmail,Id,BlogNewsLetterEmail,BlogNewsletterEmail,TranslateSets,id,TranslateSets,key,TranslateSets,name,TranslateSets,master,TranslateSets,cultureId,TranslateSets,cultureName,TranslateSets,sites,TranslateSets,copyOnCreate,TranslateSets,includeNodeName,TranslateSets,properties,TranslateSets,multiProperties,TranslateSets,providerKey,TranslateSets,autoSend,TranslateSets,ignoreDocTypes,cmsContent,pk,cmsContent,nodeId,cmsContent,contentType,TranslateProperties,id,TranslateProperties,nodeKey,TranslateProperties,alias,TranslateProperties,source,TranslateProperties,target,TranslateProperties,sortOrder,TranslateProperties,group,TranslateNodes,id,TranslateNodes,key,TranslateNodes,setKey,TranslateNodes,cultureId,TranslateNodes,cultureName,TranslateNodes,masterId,TranslateNodes,targetId,TranslateNodes,status,TranslateNodes,created,TranslateNodes,updated,TranslateNodes,writerId,TranslateNodes,masterNodeName,TranslateNodes,targetNodeName,TranslateNodes,isDictionary,TranslateNodes,contentVersion,TranslateJobNodes,id,TranslateJobNodes,jobId,TranslateJobNodes,nodeId,cmsContentVersion,id,cmsContentVersion,ContentId,cmsContentVersion,VersionId,cmsContentVersion,VersionDate,cmsContentXml,nodeId,cmsContentXml,xml,cmsDataType,pk,cmsDataType,nodeId,cmsDataType,propertyEditorAlias,cmsDataType,dbType,cmsDataTypePreValues,id,cmsDataTypePreValues,datatypeNodeId,cmsDataTypePreValues,value,cmsDataTypePreValues,sortorder,cmsDataTypePreValues,alias,cmsDocument,nodeId,cmsDocument,published,cmsDocument,documentUser,cmsDocument,versionId,cmsDocument,text,cmsDocument,releaseDate,cmsDocument,expireDate,cmsDocument,updateDate,cmsDocument,templateId,cmsDocument,newest,cmsMacro,macroScriptType,cmsMacro,macroScriptAssembly,cmsMacro,macroXSLT,cmsMacro,macroPython,cmsMedia,nodeId,cmsMedia,versionId,cmsMedia,mediaPath,cmsPreviewXml,nodeId,cmsPreviewXml,versionId,cmsPreviewXml,timestamp,cmsPreviewXml,xml,cmsPropertyData,id,cmsPropertyData,contentNodeId,cmsPropertyData,versionId,cmsPropertyData,propertytypeid,cmsPropertyData,dataInt,cmsPropertyData,dataDecimal,cmsPropertyData,dataDate,cmsPropertyData,dataNvarchar,cmsPropertyData,dataNtext,cmsTags,ParentId,cmsTask,closed,cmsTask,id,cmsTask,taskTypeId,cmsTask,nodeId,cmsTask,parentUserId,cmsTask,userId,cmsTask,DateTime,cmsTask,Comment,cmsTaskType,id,cmsTaskType,alias,cmsTemplate,design,dbo.MovieLikes,id,dbo.MovieLikes,MovieLikes,EnquiryTBL,Id,EnquiryTBL,Name,EnquiryTBL,Mobile,EnquiryTBL,Email,EnquiryTBL,Company,eventdetailsform,id,eventdetailsform,Name,eventdetailsform,Contact,eventdetailsform,Email,NewsSettlerDetails,Id,NewsSettlerDetails,NewsSettlerDetails,nsEmailTrackingItems,Id,nsEmailTrackingItems,NewsletterId,nsEmailTrackingItems,SubscriberId,nsEmailTrackingItems,Status,nsEmailTrackingItems,Name,nsEmailTrackingItems,Email,nsEmailTrackingItems,Error,nsEmailTrackingItems,SendDate,nsEmailTrackingItems,CreateDate,nsEmailTrackingItems,SubscriptionAlias,nsEmailTrackingItems,CustomData,nsNewsletters,Id,nsNewsletters,MessageBody,nsNewsletters,Name,nsNewsletters,EmailSubject,nsNewsletters,SubscriptionAlias,nsNewsletters,CreatedDate,nsNewsletters,SentDate,nsNewsletters,ScheduledSendDate,nsNewsletters,Status,nsNewsletters,EmailFrom,nsNewsletters,SenderName,nsNewsletters,SkinAlias,nsNewsletters,CreatedByUserId,nsNewsletters,ErrorMessage,nsNewsletters,ContentNodeId,nsNewsletters,Initialized,nsSubscribers,Id,nsSubscribers,Name,nsSubscribers,Email,nsSubscribers,SubscribeDate,nsSubscribers,SubscriptionId,nsSubscribers,Status,nsSubscribers,ErrorCount,nsSubscriptions,Id,nsSubscriptions,Name,nsTrackingItems,Id,nsTrackingItems,Email,nsTrackingItems,TrackingType,nsTrackingItems,NewsletterId,nsTrackingItems,CreatedDate,nsTrackingItems,Url,umbracoDomains,id,umbracoDomains,domainDefaultLanguage,umbracoDomains,domainRootStructureID,umbracoDomains,domainName,umbracoMigration,id,umbracoMigration,name,umbracoMigration,createDate,umbracoMigration,version,WorkflowSettings,Id,WorkflowSettings,DefaultApprover,WorkflowSettings,Email,WorkflowSettings,EditUrl,WorkflowSettings,SiteUrl,WorkflowSettings,FlowType,WorkflowSettings,SendNotifications,WorkflowSettings,ExcludeNodes,WorkflowSettings,LockIfActive,WorkflowUserGroups,GroupId,WorkflowUserGroups,Description,WorkflowUserGroups,Name,WorkflowUserGroups,Alias,WorkflowUserGroups,GroupEmail,WorkflowUserGroups,OfflineApproval,WorkflowUserGroups,Deleted,WorkflowUser2UserGroup,Id,WorkflowUser2UserGroup,UserId,WorkflowUser2UserGroup,GroupId,UFRecords,Id,UFRecords,Form,UFRecords,Created,UFRecords,Updated,UFRecords,CurrentPage,UFRecords,UmbracoPageId,UFRecords,IP,UFRecords,MemberKey,UFRecords,UniqueId,UFRecords,State,UFRecords,RecordData,WorkflowUserGroupPermissions,Id,WorkflowUserGroupPermissions,GroupId,WorkflowUserGroupPermissions,NodeId,WorkflowUserGroupPermissions,ContentTypeId,WorkflowUserGroupPermissions,Permission,WorkflowUserGroupPermissions,Condition,UFRecordFields,Key,UFRecordFields,FieldId,UFRecordFields,Record,UFRecordFields,Alias,UFRecordFields,DataType,WorkflowInstance,Id,WorkflowInstance,Guid,WorkflowInstance,NodeId,WorkflowInstance,Type,WorkflowInstance,TotalSteps,WorkflowInstance,AuthorUserId,WorkflowInstance,Status,WorkflowInstance,CreatedDate,WorkflowInstance,CompletedDate,WorkflowInstance,AuthorComment,UFRecordDataString,Id,UFRecordDataString,Key,UFRecordDataString,Value,WorkflowTaskInstance,Id,WorkflowTaskInstance,Type,WorkflowTaskInstance,ApprovalStep,WorkflowTaskInstance,WorkflowInstanceGuid,WorkflowTaskInstance,GroupId,WorkflowTaskInstance,CreatedDate,WorkflowTaskInstance,Status,WorkflowTaskInstance,Comment,WorkflowTaskInstance,CompletedDate,WorkflowTaskInstance,ActionedByUserId,WorkflowTaskInstance,ActionedByAdmin,UFRecordDataLongString,Id,UFRecordDataLongString,Key,UFRecordDataLongString,Value,UFRecordDataInteger,Id,UFRecordDataInteger,Key,UFRecordDataInteger,Value,UFRecordDataBit,Id,UFRecordDataBit,Key,UFRecordDataBit,Value,ContactDetails,id,ContactDetails,Name,ContactDetails,Nationality,ContactDetails,Email,ContactDetails,Address,ContactDetails,Contact,ContactDetails,CustomerService,ContactDetails,Directionalsigns,ContactDetails,Cleanlinessofmal,ContactDetails,RetailOptions,ContactDetails,FoodBeverageOptions,ContactDetails,ParkingFacility,ContactDetails,Remark,cmsContentType,isElement,cmsContentType,variations,umbracoContent,nodeId,umbracoContent,contentTypeId,umbracoContentVersion,id,umbracoContentVersion,nodeId,umbracoContentVersion,versionDate,umbracoContentVersion,userId,umbracoContentVersion,current,umbracoContentVersion,text,umbracoMediaVersion,id,umbracoMediaVersion,path,umbracoDocument,nodeId,umbracoDocument,published,umbracoDocument,edited,umbracoDataType,nodeId,umbracoDataType,propertyEditorAlias,umbracoDataType,dbType,umbracoDataType,config,umbracoLanguage,isDefaultVariantLang,umbracoLanguage,mandatory,umbracoLanguage,fallbackLanguageId,umbracoDomain,id,umbracoDomain,domainDefaultLanguage,umbracoDomain,domainRootStructureID,umbracoDomain,domainName,umbracoLog,entityType,umbracoLog,parameters,cmsMacro,macroSource,cmsMacro,macroType,cmsPropertyType,variations,umbracoPropertyData,id,umbracoPropertyData,versionId,umbracoPropertyData,propertyTypeId,umbracoPropertyData,languageId,umbracoPropertyData,segment,umbracoPropertyData,intValue,umbracoPropertyData,decimalValue,umbracoPropertyData,dateValue,umbracoPropertyData,varcharValue,umbracoPropertyData,textValue,cmsTags,languageId,umbracoRedirectUrl,culture,cmsContentNu,nodeId,cmsContentNu,published,cmsContentNu,data,cmsContentNu,rv,umbracoDocumentVersion,id,umbracoDocumentVersion,templateId,umbracoDocumentVersion,published,umbracoKeyValue,key,umbracoKeyValue,value,umbracoKeyValue,updated,umbracoContentVersionCultureVariation,id,umbracoContentVersionCultureVariation,versionId,umbracoContentVersionCultureVariation,languageId,umbracoContentVersionCultureVariation,name,umbracoContentVersionCultureVariation,date,umbracoContentVersionCultureVariation,availableUserId,umbracoDocumentCultureVariation,id,umbracoDocumentCultureVariation,nodeId,umbracoDocumentCultureVariation,languageId,umbracoDocumentCultureVariation,edited,umbracoDocumentCultureVariation,available,umbracoDocumentCultureVariation,published,umbracoDocumentCultureVariation,name,umbracoContentSchedule,id,umbracoContentSchedule,nodeId,umbracoContentSchedule,languageId,umbracoContentSchedule,date,umbracoContentSchedule,action\r\n \r\nThe following constraints (Primary Keys, Foreign Keys and Indexes) were found in the database, but are not in the current schema:\r\nFKcmsContentcmsContentTypenodeId,FKcmsContentumbracoNodeid,FKcmsContentVersioncmsContentnodeId,FKcmsContentXmlcmsContentnodeId,FKcmsDataTypeumbracoNodeid,FKcmsDataTypePreValuescmsDataTypenodeId,FKcmsDocumentcmsContentnodeId,FKcmsDocumentumbracoNodeid,FKcmsMediacmsContentnodeId,FKcmsMediaumbracoNodeid,FKcmsMembercmsContentnodeId,FKcmsMemberumbracoNodeid,FKcmsPreviewXmlcmsContentnodeId,FKcmsPropertyDatacmsPropertyTypeid,FKcmsPropertyDataumbracoNodeid,FKcmsTagscmsTags,FKcmsTaskcmsTaskTypeid,FKcmsTaskumbracoNodeid,FKcmsTaskumbracoUser,FKcmsTaskumbracoUser1,FKEmailTrackingItemNewsletter1,FKSubscribeListSubscriber1,FKUFRecordDataBitUFRecordFieldsKey,FKUFRecordDataDateTimeUFRecordFieldsKey,FKUFRecordDataIntegerUFRecordFieldsKey,FKUFRecordDataLongStringUFRecordFieldsKey,FKUFRecordDataStringUFRecordFieldsKey,FKumbracoDomainsumbracoNodeid,FKumbracoNodeumbracoUserid,FKumbracoContentumbracoNodeid,FKumbracoContentcmsContentTypeNodeId,FKumbracoContentVersionumbracoContentnodeId,FKumbracoContentVersionumbracoUserid,FKumbracoMediaVersionumbracoContentVersionid,FKumbracoDocumentumbracoContentnodeId,FKcmsDocumentTypecmsTemplatenodeId,FKumbracoDataTypeumbracoNodeid,FKumbracoLanguageumbracoLanguageid,FKumbracoDomainumbracoNodeid,FKumbracoLogumbracoUserid,FKcmsMemberumbracoContentnodeId,FKcmsPropertyTypeumbracoDataTypenodeId,FKumbracoPropertyDataumbracoContentVersionid,FKumbracoPropertyDatacmsPropertyTypeid,FKumbracoPropertyDataumbracoLanguageid,FKcmsTagsumbracoLanguageid,FKcmsContentNuumbracoContentnodeId,FKumbracoDocumentVersionumbracoContentVersionid,FKumbracoDocumentVersioncmsTemplatenodeId,FKumbracoContentVersionCultureVariationumbracoContentVersionid,FKumbracoContentVersionCultureVariationumbracoLanguageid,FKumbracoContentVersionCultureVariationumbracoUserid,FKumbracoDocumentCultureVariationumbracoNodeid,FKumbracoDocumentCultureVariationumbracoLanguageid,FKumbracoContentScheduleumbracoContentnodeId,FKumbracoContentScheduleumbracoLanguageid,PKBlogNewsLetterEmail,PKcmsContent,PKcmsContentPreviewXml,PKcmsContentVersion,PKcmsContentXml,PKcmsDataType,PKcmsDataTypePreValues,PKcmsDocument,PKcmsMedia,PKcmsPropertyData,PKcmsTask,PKcmsTaskType,PKContactDetails,PKEmailTrackingItems,PKEnquiryTBL,PKNewsletters,PKstructure,PKSubscribers,PKSubscriptions,PKTrackingItems,PKTranslateJobNodes,PKTranslateJobs,PKTranslateNodes,PKTranslateProperties,PKTranslateSets,PKTranslatorUsers,PKUFRecordDataBit,PKUFRecordDataDateTime,PKUFRecordDataInteger,PKUFRecordDataLongString,PKUFRecordDataString,PKUFRecordFields,PKUFRecords,PKumbracoDomains,PKumbracoMigration,PKWorkflowInstance,PKWorkflowSettings,PKWorkflowTaskInstance,PKWorkflowUser2UserGroup,PKWorkflowUserGroupPermissions,PKWorkflowUserGroups,PKumbracoNode,PKumbracoContent,PKumbracoContentVersion,PKumbracoMediaVersion,PKumbracoDocument,PKumbracoDataType,PKumbracoDomain,PKumbracoPropertyData,PKcmsContentNu,PKumbracoDocumentVersion,PKumbracoKeyValue,PKumbracoContentVersionCultureVariation,PKumbracoDocumentCultureVariation,PKumbracoContentSchedule\r\n \r\nThe following indexes were found in the database, but are not in the current schema:\r\nIXcmsContent,IXcmsContentVersionContentId,IXcmsContentVersionVersionId,IXcmsDataTypenodeId,IXcmsDocument,IXcmsDocumentnewest,IXcmsDocumentpublished,IXcmsMedia,IXcmsPropertyData1,IXcmsPropertyData2,IXcmsPropertyData3,IXcmsTaskTypealias,NCIEmailTrackingItemsEmail,NCIEmailTrackingItemsNewsletterId1,NCINewslettersContentNodeId,NCINewslettersStatus,NCITrackingItemsEmail1,NCITrackingItemsNewsletterId1,IXTranslateJobNodesNodes,IXTranslateJobNodesPairs,IXTranslateNodeskey,IXpropertyNodeKey,IXTranslateSetskey,IXdatabitrecordfield,IXdatadatetimerecordfield,IXdataintegerrecordfield,IXdatalongstringrecordfield,IXdatastringrecordfield,IXumbracoMigration,IXumbracoNodeObjectType,IXumbracoNodeParentId,IXumbracoNodePath,IXumbracoNodeTrashed,IXumbracoNodeUniqueID,IXumbracoNodeUniqueId,IXumbracoNodeParentId,IXumbracoNodePath,IXumbracoNodeTrashed,IXumbracoNodeObjectType,IXumbracoMediaVersion,IXumbracoDocumentPublished,IXumbracoLanguagefallbackLanguageId,IXumbracoPropertyDataVersionId,IXumbracoPropertyDataPropertyTypeId,IXumbracoPropertyDataLanguageId,IXumbracoPropertyDataSegment,IXcmsTagsLanguageId,IXumbracoUserLoginlastValidatedUtc,IXumbracoContentVersionCultureVariationVersionId,IXumbracoContentVersionCultureVariationLanguageId,IXumbracoDocumentCultureVariationNodeId,IXumbracoDocumentCultureVariationLanguageId\r\n \r\nThe following unknown constraints (Primary Keys, Foreign Keys and Indexes) were found in the database, but are not in the current schema:\r\nId\r\n \r\n","SourceContext":"Umbraco.Core.Migrations.Install.DatabaseBuilder","ProcessId":4324,"ProcessName":"iisexpress","ThreadId":63,"AppDomainId":4,"AppDomainAppId":"LMW3SVC2ROOT","MachineName":"DESKTOP-NCFRDII","Log4NetLevel":"INFO ","HttpRequestNumber":9,"HttpRequestId":"21c1503a-98ce-451a-a2b7-86d10aa8f2a1"} {"@t":"2021-02-05T11:41:30.0634495Z","@mt":"Installation step {Step} failed.","@l":"Error","@x":"System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> Umbraco.Web.Install.InstallException: The database failed to upgrade. ERROR: The database configuration failed with the following message: Object reference not set to an instance of an object.\n Please check log file for additional information (can be found in '/AppData/Logs/')\r\n at Umbraco.Web.Install.InstallSteps.DatabaseUpgradeStep.ExecuteAsync(Object model)\r\n --- End of inner exception stack trace ---\r\n at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)\r\n at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)\r\n at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)\r\n at Umbraco.Web.Install.Controllers.InstallApiController.Data/Logs/')\r\n at Umbraco.Web.Install.InstallSteps.DatabaseUpgradeStep.ExecuteAsync(Object model)\r\n --- End of inner exception stack trace ---\r\n at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)\r\n at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)\r\n at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)\r\n at Umbraco.Web.Install.Controllers.InstallApiController.

  • Marc Goodson 2097 posts 13922 karma points MVP 8x c-trib
    Feb 06, 2021 @ 11:40
    Marc Goodson
    0

    Hi Kiran

    Looking at your stack trace the error appears to be thrown here in the ConvertRelatedLinksToMultiUrlPicker migration step

    https://github.com/umbraco/Umbraco-CMS/blob/34e80d86e8c0b754f6b7a02e307f53cb32806bbe/src/Umbraco.Core/Migrations/Upgrade/V80_0/ConvertRelatedLinksToMultiUrlPicker.cs#L18

    if you look at the code that is run when Migrate() is called:

     var sqlDataTypes = Sql()
                    .Select<DataTypeDto>()
                    .From<DataTypeDto>()
                    .Where<DataTypeDto>(x => x.EditorAlias == Constants.PropertyEditors.Legacy.Aliases.RelatedLinks
                                             || x.EditorAlias == Constants.PropertyEditors.Legacy.Aliases.RelatedLinks2);
    
                var dataTypes = Database.Fetch<DataTypeDto>(sqlDataTypes);
                var dataTypeIds = dataTypes.Select(x => x.NodeId).ToList();
    

    It's querying the database for the two core Property Editors: RelatedLinks and RelatedLinks2 - and pulling back all the DataTypes that use those two property editors.

    And then from all those retrieved DataTypes, it's calling .Select to get a list of all the DataTypeIds

    So my guess here is the 'Object reference not set to an instance of an object' might be thrown if the dataTypes variable is a Null object, and 'that might be the case' if the site you are trying to migrate has had its default RelatedLinks or RelatedLinks2 Data Type configurations deleted?

    So I guess what might rule this out, is checking your V7 backoffice to see if there are any RelatedLinks Data Types setup?

    and perhaps create a new DataType based on RelatedLinks or RelatedLinks2 in your V7 site, and try the migration again (with your fingers crossed!)

    regards

    marc

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