Error when adding new document type umbraco 7.4.3 nuget version v7.4.2.5

[jonsamwell]

Hi,

The below code throws the error:

'System.TypeLoadException' in mscorlib.dll

Additional information: GenericArguments[1], 'System.Int32', on 'Umbraco.Core.Persistence.Repositories.RepositoryBase`2[TId,TEntity]' violates the constraint of type parameter 'TEntity'.

Unfortunately there is no associated stack trace.

I haven't been able to figure out why. This is on a fresh Umbraco install and the first and only migration that is run.

This is the code that is throwing it:

 DocumentType
    .Create(nameof(SiteDocumentType))
    .CreateTab(DocumentTypePropertyTabs.Company)
    .AddProperty(nameof(SiteDocumentType.SiteTitle), nameof(SiteDocumentType.SiteTitle), DataTypes.TextString, DocumentTypePropertyTabs.Company, true)
    .AddProperty(nameof(SiteDocumentType.PrimaryContactEmail), nameof(SiteDocumentType.PrimaryContactEmail), DataTypes.TextString, DocumentTypePropertyTabs.Company, true)
    .AddProperty(nameof(SiteDocumentType.PrimaryContactNumber), nameof(SiteDocumentType.PrimaryContactNumber), DataTypes.TextString, DocumentTypePropertyTabs.Company, true)
    .Save();

[anD1332]

Hi, issue is probably a conflict with the Umbraco versions.

We will need to investigate this to see if we can remove the dependency to the specific Umbraco version but one workaround for the time being would be to create a fork of uFluent with the version of Umbraco you are using.