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  • Jimmy 30 posts 145 karma points
    7 days ago


    We got this weird upload issue in the Media section in backoffice. Both running local on Visual Studio and on the live server.

    If we restart the site, we can upload a single small file, and then is fails after that.

    Here is the log, any suggestions/help would be much appreciated.

    {"@t":"2020-05-20T13:58:59.5078824Z","@mt":"Could not acquire actionExecutedContext.Response.Content","@l":"Error","@x":"System.NullReferenceException: Object reference not set to an instance of an object.\r\n at Umbraco.Web.WebApi.Filters.FileUploadCleanupFilterAttribute.OnActionExecuted(HttpActionExecutedContext actionExecutedContext) in D:\a\1\s\src\Umbraco.Web\WebApi\Filters\FileUploadCleanupFilterAttribute.cs:line 81","SourceContext":"Umbraco.Web.WebApi.Filters.FileUploadCleanupFilterAttribute","ProcessId":20784,"ProcessName":"iisexpress","ThreadId":61,"AppDomainId":4,"AppDomainAppId":"LMW3SVC2ROOT","MachineName":"DESKTOP-Q19CI17","Log4NetLevel":"ERROR"} {"@t":"2020-05-20T13:58:59.5716783Z","@mt":"Unhandled controller exception occurred for request '{RequestUrl}'","@l":"Error","@x":"System.NullReferenceException: Object reference not set to an instance of an object.\r\n at Umbraco.Web.Editors.MediaController.GetParentIdAsInt(String parentId, Boolean validatePermissions) in D:\a\1\s\src\Umbraco.Web\Editors\MediaController.cs:line 830\r\n at Umbraco.Web.Editors.MediaController.

  • Jimmy 30 posts 145 karma points
    6 days ago

    Trying to solve this.

    If i use the drag and drop method in an RTE it works fine, also with multiple images.

    So I maybe it is something with the "Media Picker" Property editor.

    Is there anyway to restore this, if it for some reason broke?

  • Jimmy 30 posts 145 karma points
    4 days ago

    I solved this.

    in web.config i removed

    <add key="aspnet:UseTaskFriendlySynchronizationContext" value="false" />

    and upload works again. I am not sure why or when this line came into my web.config file.

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