title: SSRS Migration from 2008R2 to 2017 Error RSPortal
body: <p>I was migrating our reporting services from the version 2008R2 to the version 2017 restoring the db and all seems to work fine unless for some report for which I cannot open the subscriptions page.</p>
  
  <p>For those report every time I enter in the report subscriptions page from the web view I get this error
  "Something went wrong. Please try again later. "</p>
  
  <p>If I go in the log from the RSPortal File I see this error:</p>
  
  <pre><code>ERROR: OData exception occurred: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---&gt; System.FormatException: The string was not recognized as a valid DateTime. There is an unknown word starting at index 18.
     at System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles)
     at Microsoft.ReportingServices.Portal.Services.ODataExtensions.ParameterValueExtensions.FormatAsISO8601Date(String date, String culture)
     at Microsoft.ReportingServices.Portal.Services.ODataExtensions.ParameterValueExtensions.ToWebApiReportParameterValue(ParameterValue parameterValue, ReportParameterType reportParameterType, String culture)
     at Microsoft.ReportingServices.Portal.Services.ODataExtensions.SubscriptionExtensions.ToReportPameterList(SubscriptionImpl librarySubscription, Dictionary`2 parameterTypes, String culture)
     at Microsoft.ReportingServices.Portal.Services.ODataExtensions.SubscriptionExtensions.ToWebApiModel(SubscriptionImpl librarySubscription, Dictionary`2 parameterTypes, SubscriptionProperties properties)
     at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
  </code></pre>
  
  <p>Does anyone have a suggestion on how to solve it? I thought was something related to the CultureInfo value but I am not sure.</p>
  
  <p>Thanks</p>