After upgrading DIFY to version 1.11.0, the Tongyi Qianwen plugin can only use version 0.0.46. Upgrading it causes errors.

[jackleehui]

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Dify version

1.11.0

Plugin version

0.1.16

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

Only version 0.0.46 works; any upgrade results in errors.

✔️ Error log

[dosubot]

This is a known issue with plugin upgrades in Dify: 500 Internal Server Errors often happen when the backend expects certain fields in the plugin response, but newer plugin versions (like Tongyi Qianwen >0.0.46) return data in a way that Dify 1.11.0 doesn't handle defensively. This can also be triggered by runtime panics (such as nil pointer dereference) in the plugin daemon, especially around endpoints like parameter-rules for newer models. The root cause is usually in the plugin or upstream API response, not Dify core itself.

Immediate workarounds include:

• Double-checking your plugin configuration and credentials.
• Using fallback/default values for expected keys in your workflow logic.
• As a temporary fix, you can add an Nginx rule to intercept requests to /plugin/[uuid]/dispatch/model/schema and return a default JSON response to prevent backend errors:

location ~* ^/plugin/[0-9a-f-]+/dispatch/model/schema$ {
  default_type application/json;
  return 200 '{"code":0,"data":{"schema":{}},"message":"success"}';
}

After editing your Nginx config, restart the service for changes to take effect.
If the error persists, check the plugin daemon logs for more details—often the stack trace will point to a missing key or a nil pointer in the plugin code.

There is no explicit version lock in the Tongyi Qianwen plugin code, so the issue is likely due to changes in API usage or plugin dependencies that Dify 1.11.0 doesn't fully support yet. For now, staying on 0.0.46 or using the Nginx workaround is the most reliable path until a compatibility fix is released.
References: issue 1706, issue 1729.

To reply, just mention @dosu.

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