FDDB111: Unsupported old version error

Field	Value
Code	FDDB111
Severity	Error

Message

Declared schema version {0} is no longer supported. Minimum supported version is {1}. See {2} for migration guidance.

Description

The declared schema version is older than the minimum version this generator supports. The source generator cannot emit code for a version it no longer supports. 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.

You must either update your schema version declaration to match a supported version (and adopt the corresponding code shape changes), or pin to an older version of the Oproto.FluentDynamoDb NuGet package that still supports your declared schema version.

Example

The following code triggers this diagnostic when the minimum supported version is 2.0:

using Oproto.FluentDynamoDb.Attributes;

// Schema version 1.0 is no longer supported by this package version
[assembly: FluentDynamoDbSchemaVersion(1, 0)]

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

Fix

Update the schema version to the minimum supported version (or higher) and apply any necessary migration steps:

using Oproto.FluentDynamoDb.Attributes;

// Updated to a supported schema version
[assembly: FluentDynamoDbSchemaVersion(2, 0)]

Alternatively, pin to an older package version that still supports schema version 1.0. Refer to the migration guide URL provided in the diagnostic message for step-by-step instructions.