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46 lines
1.6 KiB
Markdown
46 lines
1.6 KiB
Markdown
---
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parent: Troubleshooting
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nav_order: 10
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---
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# File editing problems
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Sometimes the LLM will reply with some code changes
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that don't get applied to your local files.
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In these cases, aider might say something like "Failed to apply edit to *filename*"
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or other error messages.
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This usually happens because the LLM is disobeying the system prompts
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and trying to make edits in a format that aider doesn't expect.
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Aider makes every effort to get the LLM
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to conform, and works hard to deal with
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LLMM edits that are "almost" correctly formatted.
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But sometimes the LLM just won't cooperate.
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In these cases, here are some things you might try.
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## Use a capable model
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If possible try using GPT-4o, Claude 3.5 Sonnet or Claude 3 Opus,
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as they are the strongest and most capable models.
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Weaker models
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are more prone to
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disobeying the system prompt instructions.
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Most local models are just barely capable of working with aider,
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so editing errors are probably unavoidable.
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## Reduce distractions
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Many LLM now have very large context windows,
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but filling them with irrelevant code or conversation
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can confuse the model.
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- Don't add too many files to the chat, *just* add the files you think need to be edited.
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Aider also sends the LLM a [map of your entire git repo](https://aider.chat/docs/repomap.html), so other relevant code will be included automatically.
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- Use `/drop` to remove files from the chat session which aren't needed for the task at hand. This will reduce distractions and may help GPT produce properly formatted edits.
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- Use `/clear` to remove the conversation history, again to help GPT focus.
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## More help
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{% include help.md %}
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