Crash when trying to request and install certificate

[fkorsa]

The let's encrypt Azure extension crashed when I clicked on "request and install certificates". Here is the log:

Server Error in '/letsencrypt' Application.
There is no ViewData item of type 'IEnumerable' that has the key 'Hostnames'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: There is no ViewData item of type 'IEnumerable' that has the key 'Hostnames'.

Source Error:

Line 22: @Html.LabelFor(model => model.Hostnames, htmlAttributes: new { @Class = "control-label col-md-2" })
Line 23:

Line 24: @Html.ListBoxFor(model => model.Hostnames, ViewBag.HostNames as IEnumerable, new { htmlAttributes = new { @Class = "form-control" } })
Line 25: @Html.ValidationMessageFor(model => model.Hostnames, "", new { @Class = "text-danger" })
Line 26:

Source File: D:\home\SiteExtensions\letsencrypt\Views\Home\Install.cshtml Line: 24

Stack Trace:

[InvalidOperationException: There is no ViewData item of type 'IEnumerable' that has the key 'Hostnames'.]
System.Web.Mvc.Html.SelectExtensions.GetSelectData(HtmlHelper htmlHelper, String name) +228
System.Web.Mvc.Html.SelectExtensions.SelectInternal(HtmlHelper htmlHelper, ModelMetadata metadata, String optionLabel, String name, IEnumerable1 selectList, Boolean allowMultiple, IDictionary2 htmlAttributes) +118
System.Web.Mvc.Html.SelectExtensions.ListBoxFor(HtmlHelper1 htmlHelper, Expression1 expression, IEnumerable1 selectList, IDictionary2 htmlAttributes) +93
System.Web.Mvc.Html.SelectExtensions.ListBoxFor(HtmlHelper1 htmlHelper, Expression1 expression, IEnumerable1 selectList, Object htmlAttributes) +69 ASP._Page_Views_Home_Install_cshtml.Execute() in D:\home\SiteExtensions\letsencrypt\Views\Home\Install.cshtml:24 System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +197 System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +105 System.Web.WebPages.StartPage.RunPage() +17 System.Web.WebPages.StartPage.ExecutePageHierarchy() +73 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +78 System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance) +256 System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer) +107 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +291 System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +13 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +56
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +420 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList1 filters, ActionResult actionResult) +52
System.Web.Mvc.Async.<>c__DisplayClass3_6.b__4() +198
System.Web.Mvc.Async.<>c__DisplayClass3_1.b__1(IAsyncResult asyncResult) +100
System.Web.Mvc.Async.WrappedAsyncResult1.CallEndDelegate(IAsyncResult asyncResult) +10 System.Web.Mvc.Async.WrappedAsyncResultBase1.End() +49
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +27
System.Web.Mvc.<>c.b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +11
System.Web.Mvc.Async.WrappedAsyncVoid1.CallEndDelegate(IAsyncResult asyncResult) +29 System.Web.Mvc.Async.WrappedAsyncResultBase1.End() +49
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +45
System.Web.Mvc.<>c.b__151_2(IAsyncResult asyncResult, Controller controller) +13
System.Web.Mvc.Async.WrappedAsyncVoid1.CallEndDelegate(IAsyncResult asyncResult) +22 System.Web.Mvc.Async.WrappedAsyncResultBase1.End() +49
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +26
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10
System.Web.Mvc.<>c.b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +28
System.Web.Mvc.Async.WrappedAsyncVoid1.CallEndDelegate(IAsyncResult asyncResult) +29 System.Web.Mvc.Async.WrappedAsyncResultBase1.End() +49
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +28
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +577
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +132
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +163

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3282.0

[andr3w]

I'm getting the same issue.

[sjkp]

@andr3w can you try release 0.9.6 and let me know if that fixes it. I cant reproduce the error, so if 0.9.6 doesnt help you have to provide more info.
What is your web app setup like (which region, are you using app service plan and web app in same resource group)

[andr3w]

Thanks. I'll try that and come back to you with more details.

…

On Sun, 7 Apr 2019, 21:14 Simon J.K. Pedersen, ***@***.***> wrote: @andr3w <https://github.com/andr3w> can you try release 0.9.6 and let me know if that fixes it. I cant reproduce the error, so if 0.9.6 doesnt help you have to provide more info. What is your web app setup like (which region, are you using app service plan and web app in same resource group) — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#305 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAA4d1ispEBQSPrpn3MfIigSdZxTEIlgks5velG_gaJpZM4ccSwS> .

[fkorsa]

Personally it was a one-time issue, unfortunately. I simply refreshed and clicked again and it worked. I just wanted to report it in case the call stack would help you.

For me, region is West Europe, and app service plan and web app are in the same resource group indeed.

[andr3w]

Hi Simon, Thanks for taking the trouble to reply. I've been unable to recreate that error. I've now got everything in the same resource group and everything seems to be working. A possible causes... the storage account was in a different resource group and possibly in a different region; absolutely no good reason for this other than me selected the default "create a new resource group" unthinkingly. At one stage I think I had some things in the same resource group but in different regions. Anyway thanks very much for the extension. I find tasks such as renewing certificates extraordinarily dangerous. I figure how to complete them, then, one or two years later; when it has to be redone I can be almost certain that the portal will have changed and my notes, if I can find them, will be useless. Andrew

…

On Sun, 7 Apr 2019 at 21:18, Andrew Cumming ***@***.***> wrote: Thanks. I'll try that and come back to you with more details. On Sun, 7 Apr 2019, 21:14 Simon J.K. Pedersen, ***@***.***> wrote: > @andr3w <https://github.com/andr3w> can you try release 0.9.6 and let me > know if that fixes it. I cant reproduce the error, so if 0.9.6 doesnt help > you have to provide more info. > What is your web app setup like (which region, are you using app service > plan and web app in same resource group) > > — > You are receiving this because you were mentioned. > Reply to this email directly, view it on GitHub > <#305 (comment)>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/AAA4d1ispEBQSPrpn3MfIigSdZxTEIlgks5velG_gaJpZM4ccSwS> > . >