Failure to deploy to multiple environments

We are receiving the following error when we try to deploy a specific project to multiple environments at the same time. we are on version 3.3.27. Any ideas would be helpful.


System.ArgumentNullException: Value cannot be null.
Parameter name: instance
at System.ComponentModel.DataAnnotations.ValidationContext…ctor(Object instance, IServiceProvider serviceProvider, IDictionary2 items) at Nancy.Validation.DataAnnotations.DataAnnotationsValidatorAdapter.<Validate>d__4.MoveNext() at System.Collections.Generic.List1.InsertRange(Int32 index, IEnumerable1 collection) at Nancy.Validation.DataAnnotations.PropertyValidator.Validate(Object instance, NancyContext context) at Nancy.Validation.DataAnnotations.DataAnnotationsValidator.Validate(Object instance, NancyContext context) at Octopus.Server.Web.Infrastructure.Api.Responder1.BindAndValidateTModel in Y:\Work\refs\tags\3.3.27\source\Octopus.Server\Web\Infrastructure\Api\Responder.cs:line 83
at Octopus.Server.Web.Api.Actions.DeploymentCreateAction.Execute() in Y:\Work\refs\tags\3.3.27\source\Octopus.Server\Web\Api\Actions\DeploymentCreateAction.cs:line 56
at Octopus.Server.Web.Infrastructure.Api.Responder1.Respond(TDescriptor options, NancyContext context) in Y:\Work\refs\tags\3.3.27\source\Octopus.Server\Web\Infrastructure\Api\Responder.cs:line 162 at Octopus.Server.Web.Api.OctopusRestApiModule.<>c__DisplayClass0_0.<.ctor>b__0(Object o) in Y:\Work\refs\tags\3.3.27\source\Octopus.Server\Web\Api\OctopusRestApiModule.cs:line 46 at CallSite.Target(Closure , CallSite , Func2 , Object )
at Nancy.Routing.Route.<>c__DisplayClass4.b__3(Object parameters, CancellationToken context)


Thanks for reaching out. Could you send us the full deployment log so we can see the entire context of the error? . Feel free to set this conversation as Private if you want to keep the contents of this conversation between you and our staff.

I can see that you are using a rather old version of Octopus. Please keep in mind that we might ask you to upgrade to a more recent version in order to fix this issue.


Hi Dalmiro,
The deployment never actually happened. We received the error on the deploy release page after selecting multiple environments from the list and clicking the “Select” button. The first environment displayed fine with the previous release to it in parentheses. All subsequent environments listed the above error. Below the errors was the normal area to input our prompted variables.


Could you please send me a screenshot of what happens on the release page after you select multiple environments?