I did install successfully DXA CTP 2.0 on SDL Web 8.5 and also published all the example website pages successfully. DXA Model service also setup successfully and up and running. Accessing DXA Web app URL then it's getting Internal Server Error. [![enter image description here][1]][1] Content Service side - **No errors** DXA Model service side: On **cd_client**.2018-01-30.log 2018-01-30 22:46:02,051 WARN c.t.c.XMLConfigurationReader - Warning while validating file 'cd_ambient_conf.xml' with schema 'schemas/cd_ambient_conf.xsd'. cvc-complex-type.2.4.a: Invalid content was found starting with element 'ForwardedClaims'. One of '{InstanceID, ExcludedPaths, Cartridges, Cookies, ClaimStoreProvider}' is expected. DXA .NET Webapp side: cd_client.log - **No ERROR** site.log - **ERROR** 2018-01-30 23:04:27,865 [10] ERROR - Item '/error-404' not found System.Web.HttpException (0x80004005): Item '/error-404' not found at Sdl.Web.Mvc.Controllers.PageController.NotFound() in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Mvc\Controllers\PageController.cs:line 135 at Sdl.Web.Mvc.Controllers.PageController.Page(String pageUrl) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Mvc\Controllers\PageController.cs:line 49 Additional **DEBUG** Logs from Web app: 2018-01-30 23:10:43,607 [1] INFO - -------- Initializing DXA Framework v2.0.0.34 -------- 2018-01-30 23:10:43,612 [1] INFO - Using implementation type 'Sdl.Web.Common.Logging.Log4NetLogger' for interface ILogger. 2018-01-30 23:10:43,635 [1] INFO - Using implementation type 'Sdl.Web.Tridion.Caching.DefaultCacheProvider' for interface ICacheProvider. 2018-01-30 23:10:44,795 [1] DEBUG - DXA Model Service found at URL 'http://localhost:8998/' 2018-01-30 23:10:44,795 [1] INFO - Using implementation type 'Sdl.Web.Tridion.R2Mapping.DefaultContentProviderR2' for interface IContentProvider. 2018-01-30 23:10:44,796 [1] INFO - Using implementation type 'Sdl.Web.Tridion.Navigation.StaticNavigationProvider' for interface INavigationProvider. 2018-01-30 23:10:44,833 [1] DEBUG - context-service-publication-evidence setting: '' 2018-01-30 23:10:44,833 [1] INFO - Using implementation type 'Sdl.Web.Tridion.Context.ContextServiceClaimsProvider' for interface IContextClaimsProvider. 2018-01-30 23:10:44,834 [1] INFO - Using implementation type 'Sdl.Web.Tridion.Linking.DefaultLinkResolver' for interface ILinkResolver. 2018-01-30 23:10:44,835 [1] INFO - Using implementation type 'Sdl.Web.Tridion.Mapping.DefaultRichTextProcessor' for interface IRichTextProcessor. 2018-01-30 23:10:44,835 [1] INFO - No implementation type configured for optional interface IConditionalEntityEvaluator. 2018-01-30 23:10:44,836 [1] INFO - Using implementation type 'Sdl.Web.Mvc.Html.BaseMediaHelper' for interface IMediaHelper. 2018-01-30 23:10:44,841 [1] INFO - Using implementation type 'Sdl.Web.Tridion.CdApiLocalizationResolver' for interface ILocalizationResolver. 2018-01-30 23:10:44,841 [1] INFO - No implementation type configured for optional interface IUnknownLocalizationHandler. 2018-01-30 23:10:44,902 [1] DEBUG - Model type 'Sdl.Web.Modules.Core.Models.ItemList' has semantic type(s) 's:ItemList'. 2018-01-30 23:10:44,903 [1] DEBUG - Registered property 'Headline' as semantic property 'headline' 2018-01-30 23:10:44,903 [1] DEBUG - Registered property 'ItemListElements' as semantic property 'itemListElement' 2018-01-30 23:10:44,904 [1] DEBUG - Model type 'Sdl.Web.Modules.Core.Models.Article' has semantic type(s) 's:Article'. 2018-01-30 23:10:44,904 [1] DEBUG - Registered property 'Headline' as semantic property 'headline' 2018-01-30 23:10:44,904 [1] DEBUG - Registered property 'Image' as semantic property 'image' 2018-01-30 23:10:44,904 [1] DEBUG - Registered property 'Date' as semantic property 'dateCreated' 2018-01-30 23:10:44,904 [1] DEBUG - Registered property 'Description' as semantic property 'about' 2018-01-30 23:10:44,905 [1] DEBUG - Registered property 'ArticleBody' as semantic property 'articleBody' 2018-01-30 23:10:44,905 [1] DEBUG - Type 'Sdl.Web.Modules.Core.Models.Download' has multiple SemanticEntity attributes for prefix 's'. Ignoring 'MediaObject'. 2018-01-30 23:10:44,905 [1] DEBUG - Model type 'Sdl.Web.Modules.Core.Models.Download' has semantic type(s) 's:DataDownload s:MediaObject'. 2018-01-30 23:10:44,905 [1] DEBUG - Registered property 'Description' as semantic property 'name description' 2018-01-30 23:10:44,905 [1] DEBUG - Type 'Sdl.Web.Modules.Core.Models.Image' has multiple SemanticEntity attributes for prefix 's'. Ignoring 'MediaObject'. 2018-01-30 23:10:44,906 [1] DEBUG - Model type 'Sdl.Web.Modules.Core.Models.Image' has semantic type(s) 's:ImageObject s:MediaObject'. 2018-01-30 23:10:44,906 [1] DEBUG - Registered property 'AlternateText' as semantic property 'name' 2018-01-30 23:10:44,906 [1] DEBUG - Model type 'Sdl.Web.Modules.Core.Models.Place' has semantic type(s) 's:Place'. 2018-01-30 23:10:44,907 [1] DEBUG - Registered property 'Name' as semantic property 'name' 2018-01-30 23:10:44,907 [1] DEBUG - Registered property 'Image' as semantic property 'image' 2018-01-30 23:10:44,907 [1] DEBUG - Registered property 'Address' as semantic property 'address' 2018-01-30 23:10:44,907 [1] DEBUG - Registered property 'Telephone' as semantic property 'telephone' 2018-01-30 23:10:44,907 [1] DEBUG - Registered property 'FaxNumber' as semantic property 'faxNumber' 2018-01-30 23:10:44,907 [1] DEBUG - Registered property 'Email' as semantic property 'email' 2018-01-30 23:10:44,907 [1] DEBUG - Registered property 'Location' as semantic property 'geo' 2018-01-30 23:10:44,907 [1] DEBUG - Type 'Sdl.Web.Modules.Core.Models.YouTubeVideo' has multiple SemanticEntity attributes for prefix 's'. Ignoring 'MediaObject'. 2018-01-30 23:10:44,907 [1] DEBUG - Model type 'Sdl.Web.Modules.Core.Models.YouTubeVideo' has semantic type(s) 's:VideoObject s:MediaObject'. 2018-01-30 23:10:44,907 [1] DEBUG - Model type 'Sdl.Web.Modules.Core.Models.ContentList`1[[Sdl.Web.Modules.Core.Models.Teaser, Sdl.Web.Modules.Core, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null]]' has semantic type(s) 's:ItemList'. 2018-01-30 23:10:44,910 [1] DEBUG - Registered property 'Headline' as semantic property 'headline' 2018-01-30 23:10:44,910 [1] DEBUG - Registered property 'Link' as semantic property 'link' 2018-01-30 23:10:44,910 [1] DEBUG - Registered property 'ContentType' as semantic property 'contentType' 2018-01-30 23:10:44,910 [1] DEBUG - Registered property 'ItemListElements' as semantic property 'itemListElement' 2018-01-30 23:10:44,910 [1] DEBUG - Model type 'Sdl.Web.Modules.Core.Models.ContentList`1[[Sdl.Web.Modules.Core.Models.Article, Sdl.Web.Modules.Core, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null]]' has semantic type(s) 's:ItemList'. 2018-01-30 23:10:44,910 [1] DEBUG - Registered property 'Headline' as semantic property 'headline' 2018-01-30 23:10:44,910 [1] DEBUG - Registered property 'Link' as semantic property 'link' 2018-01-30 23:10:44,911 [1] DEBUG - Registered property 'ContentType' as semantic property 'contentType' 2018-01-30 23:10:44,911 [1] DEBUG - Registered property 'ItemListElements' as semantic property 'itemListElement' 2018-01-30 23:10:44,912 [1] DEBUG - Found Device Family 'featurephone'. 2018-01-30 23:10:44,912 [1] DEBUG - Found Device Family 'smartphone'. 2018-01-30 23:10:44,913 [1] DEBUG - Found Device Family 'tablet'. 2018-01-30 23:10:44,913 [1] DEBUG - Found Device Family 'desktop'. 2018-01-30 23:10:45,125 [10] DEBUG - No value cached for key '/version.json' in region 'BinaryPublishDate'. 2018-01-30 23:10:45,331 [10] DEBUG - Binary with URL '/version.json' is still up to date, no action required 2018-01-30 23:10:45,500 [10] DEBUG - No value cached for key '/system/config/_all.json' in region 'BinaryPublishDate'. 2018-01-30 23:10:45,613 [10] DEBUG - Binary with URL '/system/config/_all.json' is still up to date, no action required 2018-01-30 23:10:45,624 [10] DEBUG - No value cached for key '/system/config/core.json' in region 'BinaryPublishDate'. 2018-01-30 23:10:45,655 [10] DEBUG - Binary with URL '/system/config/core.json' is still up to date, no action required 2018-01-30 23:10:45,657 [10] DEBUG - Request URL 'http://localhost:8852/' maps to Localization [5 ('English')] 2018-01-30 23:10:45,882 [10] DEBUG - No value cached for key '[36]dd2244b2-962e-4a2b-958d-8aa9ec717ff2[8]33554846[109][36]dd2244b2-962e-4a2b-958d-8aa9ec717ff2[8]33554709[4]Page[36]b0301d29-5f80-4ffd-8aba-991d61b02a07[8]33554460[4]Page[36]b0301d29-5f80-4ffd-8aba-991d61b02a07[9]100663465--Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko' in region 'RenderedOutput'. 2018-01-30 23:10:45,898 [10] DEBUG - No value cached for key 'http://localhost:8998/PageModel/tcm/5/index?includes=INCLUDE' in region 'ModelService'. 2018-01-30 23:10:45,902 [10] DEBUG - Sending DXA Model Service Request: http://localhost:8998/PageModel/tcm/5/index?includes=INCLUDE 2018-01-30 23:10:46,040 [10] INFO - Item '/' not found 2018-01-30 23:10:46,041 [10] DEBUG - No value cached for key 'http://localhost:8998/PageModel/tcm/5/error-404?includes=INCLUDE' in region 'ModelService'. 2018-01-30 23:10:46,041 [10] DEBUG - Sending DXA Model Service Request: http://localhost:8998/PageModel/tcm/5/error-404?includes=INCLUDE 2018-01-30 23:10:46,158 [10] ERROR - Item '/error-404' not found Sdl.Web.Common.DxaItemNotFoundException: Item '/error-404' not found at Sdl.Web.Tridion.R2Mapping.DefaultContentProviderR2.LoadPageModel(String& urlPath, Boolean addIncludes, Localization localization) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Tridion\R2Mapping\DefaultContentProviderR2.cs:line 75 at Sdl.Web.Tridion.R2Mapping.DefaultContentProviderR2.GetPageModel(String urlPath, Localization localization, Boolean addIncludes) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Tridion\R2Mapping\DefaultContentProviderR2.cs:line 41 at Sdl.Web.Mvc.Controllers.PageController.NotFound() in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Mvc\Controllers\PageController.cs:line 123 2018-01-30 23:10:46,160 [10] ERROR - Item '/error-404' not found System.Web.HttpException (0x80004005): Item '/error-404' not found at Sdl.Web.Mvc.Controllers.PageController.NotFound() in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Mvc\Controllers\PageController.cs:line 135 at Sdl.Web.Mvc.Controllers.PageController.Page(String pageUrl) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Mvc\Controllers\PageController.cs:line 49 **[Edit]** Further investigation, I did add the dxa-model-service paramer in the content service and restart. Next ERROR on site: 2018-01-31 09:04:48,061 [22] DEBUG - Sending DXA Model Service Request: http://localhost:8998/PageModel/tcm/5/index?includes=INCLUDE 2018-01-31 09:04:48,147 [22] ERROR - DXA Model Service returned an error response: Status=500, Error='Internal Server Error', Exception='com.google.gson.JsonSyntaxException', Message='com.google.gson.stream.MalformedJsonException: Invalid escape sequence at line 1 column 508 path $.claimValues..DOCUMENT_ROOT', Path='/PageModel/tcm/5/index' 2018-01-31 09:04:48,149 [22] ERROR - DXA Model Service returned an error: com.google.gson.stream.MalformedJsonException: Invalid escape sequence at line 1 column 508 path $.claimValues..DOCUMENT_ROOT Sdl.Web.Common.DxaException: DXA Model Service returned an error: com.google.gson.stream.MalformedJsonException: Invalid escape sequence at line 1 column 508 path $.claimValues..DOCUMENT_ROOT at Sdl.Web.Tridion.R2Mapping.ModelServiceClient.LoadData[T](Uri requestUri, UInt32& hash) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Tridion\R2Mapping\ModelServiceClient.cs:line 185 at Sdl.Web.Tridion.R2Mapping.ModelServiceClient.GetPageModelData(String urlPath, Localization localization, Boolean addIncludes) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Tridion\R2Mapping\ModelServiceClient.cs:line 105 at Sdl.Web.Tridion.R2Mapping.DefaultContentProviderR2.LoadPageModel(String& urlPath, Boolean addIncludes, Localization localization) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Tridion\R2Mapping\DefaultContentProviderR2.cs:line 73 at Sdl.Web.Tridion.R2Mapping.DefaultContentProviderR2.GetPageModel(String urlPath, Localization localization, Boolean addIncludes) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Tridion\R2Mapping\DefaultContentProviderR2.cs:line 41 at Sdl.Web.Mvc.Controllers.PageController.Page(String pageUrl) in C:\Jenkins\workspace\DXAuto\stash\develop\net\build_webapp\Sdl.Web.Mvc\Controllers\PageController.cs:line 28 [![enter image description here][2]][2] Any thought what could be missing here? [1]: https://i.sstatic.net/koPIH.png [2]: https://i.sstatic.net/zEHv0.png