Relace instant apply failure - no support for completion

[IngLP]

Before submitting your bug report

• I believe this is a bug. I'll try to join the Continue Discord for questions
• I'm not able to find an open issue that reports the same bug
• I've seen the troubleshooting guide on the Continue Docs

Relevant environment info

- OS: macOS 15.4.1
- Continue version: 1.0.16
- IDE version: IntelliJ 2025.1.1.1
- Model:
- config:
  
models:
  - name: Relace Instant Apply
    provider: relace
    model: Instant-Apply
    apiKey: rlc-MS
    roles:
      - apply
    promptTemplates:
      apply: "{{{ new_code }}}"
  
  OR link to assistant in Continue hub:

Description

Ask whatever model to do a change to your code. Apply it using Relace Instant Apply (model config from continue hub). Apply fails with error "Relace provider does not support streaming completion."

To reproduce

No response

Log output

[tomasz-stefaniak]

@IngLP could you send a reproduction video? We are aware of some Relace issues but it's the first time I see one that's streaming related. A video would help me reproduce this locally.

[IngLP]

It's not a streaming problem, as far as I have understood.
The problem is that in this file https://github.com/continuedev/continue/blob/432f36c080a50554c2a9648f4451d3d7c082aab1/packages/openai-adapters/src/apis/Relace.ts
the completionStream method is called instead of the chatCompletionStream method, and the completionStream method is not implemented.

[OlhinAS]

Hi @tomasz-stefaniak!

OS Windows 11 24H2.
JetBrains PyCharm Professional 2025.1.1.1
Continue 1.0.18 (EAP)

I have freshly installed Continue 1.0.18 for JetBrains EAP and got the same behavior when applying code block with Relace.
My core log (no dev mode) is next:

[2025-05-24T22:58:37] Error: Relace provider does not support streaming completion. 
[2025-05-24T22:58:37] Error running handler for "streamDiffLines":  Error: Relace provider does not support streaming completion.
[2025-05-24T22:59:05] Error: Relace provider does not support streaming completion. 
[2025-05-24T22:59:05] Error running handler for "streamDiffLines":  Error: Relace provider does not support streaming completion.

[IngLP]

Hi @tomasz-stefaniak any updates on this? I am totally blocked in using Continue because I have no way to apply code changes! I tried

• gemini flash but it forgots closed square brackets
• openai mini but removes parts of my code (comments mostly) which should not be removed

I really don't know what to do!

[Patrick-Erichsen]

Could you try using the following in your config.yaml instead?

models:
  - uses: relace/instant-apply
    with:
      RELACE_API_KEY: ${{ secrets.RELACE_API_KEY }} ## Or if ~/.continue/config.yaml, just enter the API key

That will use the exact config from https://hub.continue.dev/relace/instant-apply?view=config

[IngLP]

I already tried it, same error.