Provisioning publishing page throws null reference exception

[leolorenzoluis]

Running the given example from [here](http://docs.subpointsolutions.com/spmeta2/definitions/sharepoint-standard/PublishingPageDefinition/#Adding with custom layout)

var customPublishing = new PublishingPageDefinition
    {
        Title = "Custom publishing",
        FileName = "Custom-publishing.aspx",
        PageLayoutFileName = "__ specify a publishing page layout file name here ___"
    };

    var model = SPMeta2Model.NewWebModel(web =>
    {
        web.AddHostList(BuiltInListDefinitions.Pages, list =>
        {
            list
                .AddPublishingPage(customPublishing);
        });
    });

throws an exception

SPMeta2.Exceptions.SPMeta2ModelDeploymentException: There was an error while pro
visioning definition. Check ModelNode prop. ---> System.NullReferenceException:
Object reference not set to an instance of an object.
at SPMeta2.SSOM.Standard.ModelHandlers.PublishingPageModelHandler.<>c__Displa
yClass8.b__7(SPFile afterFile)
at SPMeta2.SSOM.ModelHandlers.ModuleFileModelHandler.WithSafeFileOperation(SP
List list, SPFolder folder, String fileUrl, String fileName, Byte[] fileContent,
Boolean overide, Action1 onBeforeAction, Action1 onAction)
at SPMeta2.SSOM.Standard.ModelHandlers.PublishingPageModelHandler.DeployPubli
shingPage(Object modelHost, SPList list, SPFolder folder, PublishingPageDefiniti
on publishingPageModel)
at SPMeta2.SSOM.Standard.ModelHandlers.PublishingPageModelHandler.DeployModel
(Object modelHost, DefinitionBase model)
at SPMeta2.Services.Impl.DefaultModelTreeTraverseService.Traverse(Object mode
lHost, ModelNode modelNode)
--- End of inner exception stack trace ---
at SPMeta2.Services.Impl.DefaultModelTreeTraverseService.Traverse(Object mode
lHost, ModelNode modelNode)
at SPMeta2.Services.Impl.DefaultModelTreeTraverseService.<>c__DisplayClass6.<
Traverse>b__4(Object childModelHost)
at SPMeta2.SSOM.ModelHandlers.ListModelHandler.WithResolvingModelHost(ModelHo
stResolveContext modelHostContext)
at SPMeta2.Services.Impl.DefaultModelTreeTraverseService.Traverse(Object mode
lHost, ModelNode modelNode)
at SPMeta2.Services.Impl.DefaultModelTreeTraverseService.<>c__DisplayClass6.<
Traverse>b__4(Object childModelHost)
at SPMeta2.SSOM.ModelHandlers.WebModelHandler.WithResolvingModelHost(ModelHos
tResolveContext modelHostContext)
at SPMeta2.Services.Impl.DefaultModelTreeTraverseService.Traverse(Object mode
lHost, ModelNode modelNode)
at SPMeta2.Services.ModelServiceBase.ProcessModelDeployment(Object modelHost,
ModelNode modelNode)
at SPMeta2.Services.ModelServiceBase.DeployModel(ModelHostBase modelHost, Mod
elNode model)
at SPMeta2.SSOM.Services.SSOMProvisionService.DeployModel(ModelHostBase model
Host, ModelNode model)
at SPMeta2.SSOM.Services.SSOMProvisionServiceExtensions.DeployWebModel(SSOMPr
ovisionService modelHost, SPWeb web, ModelNode model)

[SubPointSupport]

Thanks for reporting that. Which version of m2 did you use?

[SubPointSupport]

Did you provide PageLayoutFileName for the page definition, which one?

[leolorenzoluis]

I did. I missed the extension file name of the file.

I had to do something like "PageLayout.aspx". I was expecting ".aspx" is taken care for me. Assuming I didn't provide the file extension, then the wrapper model should take care of it. It is most likely a page layout template that is being used and will end with ".aspx" and it can't be .html or any other file extension. Unless I am missing a different use case?

[SubPointSupport]

Valid point. We'll add a validation on top, so that M2 won't allow to provision a model without PageLayoutFileName set, and will also validate the extension - it must end with ".aspx" which makes sense.

Will do, thanks for the suggestion, @leolorenzoluis
#791