FDDB112: Unrecognized future version error

Field	Value
Code	FDDB112
Severity	Error

Message

Declared schema version {0} is not recognized. Maximum supported version is {1}. Update the Oproto.FluentDynamoDb package to a version that supports schema {0}.

Description

The declared schema version is newer than the maximum version this generator supports. The source generator cannot emit code for a future version whose code shape is not yet defined. When this error is emitted, all code generation is halted — no entity sources will be produced regardless of how many entities are declared in the assembly.

This typically happens when you've updated the schema version attribute in anticipation of a newer package version, or when you've downgraded the NuGet package without adjusting the schema version declaration.

Example

The following code triggers this diagnostic when the current (maximum) supported version is 1.0:

using Oproto.FluentDynamoDb.Attributes;

// Schema version 2.0 is not yet supported by this package version
[assembly: FluentDynamoDbSchemaVersion(2, 0)]

[DynamoDbTable("Orders")]
public partial class Order
{
    [PartitionKey]
    [DynamoDbAttribute("pk")]
    public string Pk { get; set; } = string.Empty;
}

Fix

Either update the Oproto.FluentDynamoDb NuGet package to a version that supports the declared schema version, or lower your declared version to match what's supported:

using Oproto.FluentDynamoDb.Attributes;

// Use the maximum supported schema version
[assembly: FluentDynamoDbSchemaVersion(1, 0)]