Deploying website 500 - Internal server error

Question

I am trying to deploy an ASP NET application  I have deployed the site to IIS  but when visiting it with the browser  it shows me this   Server Error 500 - Internal server error  There is a problem with the resource you are looking for  and it cannot be displayed   After fiddling around with the web config  I got   The page cannot be displayed because an internal server error has occurred   How can I see the actual issue behind this server error

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I recently got into same problem  the disk space was full on the server  Clearing some space has resolved the issue

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Sometimes  the reason might be one of your  dll assemblies is not registered correctly on the server   For example  you can successfully run a C  Excel web application on your local machine with Office installed  while getting the 500 error on server deployment  because there is no Office suite installed on the server  and thus you get the server error

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Try compiling in Debug mode  in Visual Studio    If you are in Release mode  a lot of URL Rewrite errors will not be available   Image shows the Debug selection combobox in Visual Studio

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500 internal server error can arise due to several reasons  First reason might be that web config file is not properly created  means you have missed some tag in the web config file  Secondly this error can be due to some code problem  To check which component of the web application is causing this error you can check Application setting in web config file  The detail of solving and tracing 500 internal server error with diagram is given here

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Before changing the web config file  I would check that the  NET Framework version that you are using is exactly  I mean it  4 5    4 5 2  the same compared to your GoDaddy settings  ASP Net settings in your Plesk panel   That should automatically change your web config file to the correct framework  Also notice that for now  January  16   GoDaddy works with ASP Net 3 5 and 4 5 2  To use 4 5 2 with Visual Studio it has to be 2012 or newer  and if not 2015  you must download and install the  NET Framework 4 5 2 Developer Package  If still not working  then yes  your next step should be enabling detailed error reporting so you can debug it

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I realized the permissions for the files and folders in your server also matter  I uploaded my files from a linux operating system and usually the permissions are limited for read and write  So when uploaded  the permission are still same as in the local machine    I had the same error and i just changed the permissions for the folder i had uploaded and the error was gone   Hope it helps someone

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I was pulling my hair out over this issue  Making sure the following entry was in the root web config file fixed it for me    lt configuration gt     lt system webServer gt       lt validation validateIntegratedModeConfiguration  false    gt     lt  system webServer gt   lt  configuration gt    Remember that you have to add this to the existing XML elements  if they re already there  You can t just add at the end of the file  because you can t have multiple copies of any element

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For me  the following code in the web config was the culprit  When I removed it  the web site worked fine      lt staticContent gt       lt mimeMap fileExtension   mp4  mimeType  video mp4    gt     lt  staticContent gt

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If you re using a custom HttpHandler  i e   implementing IHttpModule   make sure you re inspecting calls to its Error method   You could have your handler throw the actual HttpExceptions  which have a useful Message property  during local debugging like this       public void Error object sender  EventArgs e                if   HttpContext Current Request IsLocal              return          var ex     HttpApplication sender  Server GetLastError            if  ex GetType      typeof HttpException               throw ex          Also make sure to inspect the Exception s InnerException

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For IIS 8 There is a extra step to do other than changing the customErrors Off to show the error content    lt system web gt      lt customErrors mode  Off    gt   lt  system web gt   lt system webServer gt      lt httpErrors existingResponse  PassThrough  errorMode  Detailed   gt   lt  system webServer gt    Raul answered the question in this link Turn off IIS8 custom errors by Raul

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First  you need to enable and see detailed errors of your web messages  because this is a general message without giving information on what s really happening for security reasons   With the detailed error  you can locate the real issue here   Also  if you can run the browser on the server  you get details on the error  because the server recognizes that you are local and shows it to you  Or if you can read the log of the server using the Event Viewer  you also see the details of your error   On IIS 6     lt configuration gt       lt system web gt           lt customErrors mode  Off   gt           lt compilation debug  true   gt       lt  system web gt   lt  configuration gt    On IIS 7   lt configuration gt       lt system webServer gt           lt httpErrors errorMode  Detailed    gt           lt asp scriptErrorSentToBrowser  true   gt       lt  system webServer gt       lt system web gt           lt customErrors mode  Off   gt           lt compilation debug  true   gt       lt  system web gt   lt  configuration gt    Note  You can avoid the Debug true  You only need to close the custom errors for a while and get the detailed error page   Reference  Enabling Windows custom error messaging in Go Daddy s help articles   Also  this can help  How to enable the detailed error messages  from IIS

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If you are using IIS 8 5 it may be that you need to change the ApplicationPool  ID setting from ApplicationPoolId to NetworkService  Right click the Application Pool in question  click on  Advanced Settings  and then scroll down to ID - it will probably be set to ApplicationPoolIdentity  Click the button      and select NetworkService from the dropdown list instead   Also make sure that if it is a  NET 2 0 application that you are not referencing the 4 0 framework in your App Pool

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In addition to the other suggestions  make sure to change the existingResponse attribute of the httpErrors node to Auto from Replace  or to remove that property entirely    lt httpErrors existingResponse  Replace    gt                                        not going to work with this here

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My first attempt to publish and then run a very simple site serving only HTML produced  The page cannot be displayed because an internal server error has occurred    The problem  I had the site set to  NET 3 5 in Visual Studio  right click web site project -  Property Pages -  Build   but had the Web Site in Azure configured as  NET 4 0  Oops  I changed it to 3 5 in Azure  and it worked

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In my case  I put a mistake in my web config file  The application key somehow was put under the  lt appSettings  tag  But I wonder why it doesn t display a configuration error  The error 500 is too generic for investigating the problem

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500 Internal Error    Windows Hosting Error       Godaddy Hosting issue    I have been facing the same issue  but now my issue has been resolved  Always use in this hosting this it works   I will also recommend you all to do whatever changes you are looking to make in your web config file  Please do it one by one and test the same on the live domain so that you can find the exact problem or the features  that your hosting provider does not allow you to use    lt  xml version  1 0   gt    lt configuration gt       lt system web gt           lt trust level  Medium   gt           lt compilation debug  true  targetFramework  4 5  gt               lt assemblies gt                   lt add assembly  System Data Linq  Version 4 0 0 0  Culture neutral  PublicKeyToken B77A5C561934E089   gt               lt  assemblies gt           lt  compilation gt            lt httpRuntime targetFramework  4 5    gt           lt sessionState mode  InProc  cookieless  false  timeout  90    gt           lt authentication mode  Forms  gt               lt forms loginUrl  default aspx                       defaultUrl  default aspx                     protection  All                     cookieless  UseCookies                     slidingExpiration  false                     timeout  30                     name  aeon corpusjuris in    gt           lt  authentication gt            lt customErrors              mode  Off               defaultRedirect  errorpage aspx  gt                lt error statusCode  403  redirect  errorpage aspx   gt               lt error statusCode  404  redirect  errorpage aspx   gt           lt  customErrors gt            lt  --   lt httpModules gt                   lt add name  HTTPCaching  type  HTTPCaching   gt               lt  httpModules gt          -- gt       lt  system web gt        lt runtime gt           lt performanceScenario value  HighDensityWebHosting     gt       lt  runtime gt        lt system webServer gt           lt  --   lt modules runAllManagedModulesForAllRequests  true  gt                   lt add name  HTTPCaching  type  HTTPCaching   gt               lt  modules gt          -- gt            lt defaultDocument gt               lt files gt                   lt clear   gt                   lt add value  default aspx    gt               lt  files gt           lt  defaultDocument gt            lt httpErrors errorMode  Detailed    gt           lt asp scriptErrorSentToBrowser  true   gt            lt staticContent gt               lt clientCache cacheControlCustom  public                           cacheControlMaxAge  60 00 00                           cacheControlMode  UseMaxAge    gt           lt  staticContent gt       lt  system webServer gt        lt system web extensions gt            lt scripting gt                lt webServices gt                    lt jsonSerialization maxJsonLength  90000000  gt                    lt  jsonSerialization gt                lt  webServices gt            lt  scripting gt       lt  system web extensions gt    lt  configuration gt

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Server Error 500 - Internal server error    There is a problem with the resource you are looking for  and it cannot be displayed  Goddady  Hosting - Web - Economy - Windows Plesk   In my case  I replace this code    lt configuration gt      lt system webServer gt        lt httpErrors errorMode  Detailed    gt        lt asp scriptErrorSentToBrowser  true   gt      lt  system webServer gt      lt system web gt        lt customErrors mode  Off   gt       lt compilation debug  true  targetFramework  4 0   gt     lt  system web gt    lt  configuration gt    Then change framework 3 5 to framework 4  It shows my detailed error  I delete code in    lt httpModules gt  lt  httpModules gt    It solved my problem

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Make sure your account uses IIS 7  For more information  see Customizing IIS Settings on Your Windows Hosting Account  Follow the instructions in Changing Pipeline Mode on Your Windows IIS 7 Hosting Account  Select Integrated Pipeline Mode  In your Project References section  set Copy Local to True for the following assemblies   System Web Abstractions System Web Helpers System Web Routing System Web Mvc System Web WebPages   Add the following assemblies to your project  and then set Copy Local to True   Microsoft Web Infrastructure System Web Razor System Web WebPages Deployment System Web WebPages Razor Publish your application

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IIS also reports status code 500 without any event log hints if there are insufficient permissions on the physical home directory  i e  IIS IUSRS has no access

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I finally solved this  500 Internal server  error when deploying the ASP NET MVC 3 0 application on godaddy ocm shared hosting   somehow there were discrepancies on the version of DLL files referenced and version mentioned in file web config   I tried all the options mentioned in various forum  Nothing helped  although everyone suggested the same kind of fix  but somehow it didn t work in my scenario  Finally after banging my head for two days  I decided to delete all DLL file reference and delete web cofig  make a local copy  from the project and let the application throw the error and then add the DLL files one by one making copy to local true   After all the DLL files were added  I created a new ASP NET MVC application and copied the web config of new application to my actual application  So my actual application now has a new web config  and then I copied the connectionstring and other references from the local copy of web config that I saved   I just compiled the application and published to a local folder and FTP the published folder to goDaddy   It worked and finally my problem was solved

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For those who have this possibility  VPS hosting not web hosting    Connect to your hosting server via Remote Desktop  Open Web Browser from your remote desktop and you will see the detail description of the error   You don t need to modify web config or expose any details to anybody else

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Probably your web config file is wrong or is missing some tag  I solved my problem using the correct config tags for  NET 4    lt system web gt       lt compilation debug  true  strict  false  explicit  true  targetFramework  4 0  gt           lt assemblies gt               lt add assembly  System Deployment  Version 4 0 0 0  Culture neutral  PublicKeyToken B03F5F7F11D50A3A   gt               lt add assembly  System Windows Forms  Version 4 0 0 0  Culture neutral  PublicKeyToken B77A5C561934E089   gt               lt add assembly  System Configuration  Version 4 0 0 0  Culture neutral  PublicKeyToken B03F5F7F11D50A3A   gt               lt add assembly  System Data  Version 4 0 0 0  Culture neutral  PublicKeyToken B77A5C561934E089   gt               lt add assembly  System  Version 4 0 0 0  Culture neutral  PublicKeyToken B77A5C561934E089   gt               lt add assembly  System Drawing  Version 4 0 0 0  Culture neutral  PublicKeyToken B03F5F7F11D50A3A   gt               lt add assembly  System Web Services  Version 4 0 0 0  Culture neutral  PublicKeyToken B03F5F7F11D50A3A   gt               lt add assembly  System Xml  Version 4 0 0 0  Culture neutral  PublicKeyToken B77A5C561934E089   gt               lt add assembly  System Transactions  Version 4 0 0 0  Culture neutral  PublicKeyToken B77A5C561934E089   gt           lt  assemblies gt       lt  compilation gt       lt pages controlRenderingCompatibilityVersion  3 5  clientIDMode  AutoID  gt           lt namespaces gt               lt clear  gt               lt add namespace  System   gt               lt add namespace  System Collections   gt               lt add namespace  System Collections Specialized   gt               lt add namespace  System Configuration   gt               lt add namespace  System Text   gt               lt add namespace  System Text RegularExpressions   gt               lt add namespace  System Web   gt               lt add namespace  System Web Caching   gt               lt add namespace  System Web SessionState   gt               lt add namespace  System Web Security   gt               lt add namespace  System Web Profile   gt               lt add namespace  System Web UI   gt               lt add namespace  System Web UI WebControls   gt               lt add namespace  System Web UI WebControls WebParts   gt               lt add namespace  System Web UI HtmlControls   gt           lt  namespaces gt       lt  pages gt       lt authentication mode  None   gt   lt  system web gt

[asp.net] Deploying website: 500 - Internal server error

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