FoundryLocal CLI preview encountered a problem

[goxia]

The old foundrylocal has already been uninstalled through winget.

PS C:\Users\sufan\Downloads> foundry chat qwen3.5-4b
■ Chatting model (qwen3.5-4b)
■ note: Type /help to see chat commands, /exit to quit.
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
❯ hello

● error: IPC error 'op_handler_failed': Error from chat_completions command: Error:
Microsoft.ML.OnnxRuntimeGenAI.OnnxRuntimeGenAIException: WebGPU validation failed. [Buffer (unlabeled)] usage
(Storage(read-write)|Storage(read-only)) includes writable usage and another usage in the same synchronization scope.

• While validating compute pass usage.

• While finishing [CommandEncoder (unlabeled)].

  at Microsoft.ML.OnnxRuntimeGenAI.Result.VerifySuccess(IntPtr) + 0x47
  at Microsoft.ML.OnnxRuntimeGenAI.Generator.AppendTokenSequences(Sequences) + 0x1f
  at Microsoft.Neutron.OpenAI.Provider.OnnxChatGenerator..ctor(OnnxLoadedModel, GeneratorParams, ILogger, Sequences,
  NamedTensors) + 0x94
  at Microsoft.Neutron.OpenAI.Provider.OnnxChatGenerator.CreateOnnxChatGenerator(ChatCompletionCreateRequestExtended,
  OnnxLoadedModel, AzureFoundryLocalModel, ITelemetry, ILogger) + 0xa94
  at Microsoft.AI.Foundry.Local.ChatClient.<>c__DisplayClass8_0.b__0(CancellationToken) +
  0x2a
  at Microsoft.Neutron.OpenAI.Provider.ChatCompletions.d__3.MoveNext() + 0x234
  --- End of stack trace from previous location ---
  at Microsoft.AI.Foundry.Local.ChatClient.d__8.MoveNext() + 0x2cb
  --- End of stack trace from previous location ---
  at Microsoft.AI.Foundry.Local.ChatClient.d__8.MoveNext() + 0x446
  --- End of stack trace from previous location ---
  at
  Microsoft.AI.Foundry.Local.NativeInterop.<>c__DisplayClass13_0.<b__2>d.MoveNext() +
  0x467
  --- End of stack trace from previous location ---
  at
  Microsoft.AI.Foundry.Local.NativeInterop.<>c__DisplayClass13_0.<b__2>d.MoveNext() +
  0x7d9
  --- End of stack trace from previous location ---
  at Microsoft.AI.Foundry.Local.NativeInterop.d__9.MoveNext() + 0xb8
  Hint: Try 'foundry server stop' then 'foundry server start'.

[baijumeswani]

gOxiA (@goxia) Apologies that you encountered this. This is a known issue that was addressed in microsoft/onnxruntime-genai#2191 and consequently released as part of the Foundry Local SDK 1.2.1.
The CLI was built on top of v1.2.0 and hence does not contain the fix. Will work on updating the CLI so it uses FL 1.2.1 and publish an update.