PLEASE urgent !
Hi everyone, I have a problem that I can't solve at all.
My agent doesn't respond (no matter what the message is), it displays an error message but I can't figure out what the problem is.
Plus, I have other agents with exactly the same workflow working fine, so I don't understand.
If anyone knows where the problem could be coming from, that would be great!
Thanks in advance!
3 Replies
Here are a few quick checks that usually resolve a “generic error / no-response” situation:
1. Run the agent in Prototype with the Debug panel open
• Every step the agent executes is listed there.
• The red ⚠️ line will show the exact block or API call that is failing – that detail often isn’t shown inside the live chat widget. 2. Compare the agent’s Settings → AI Model & Environment to the agents that work
• Same model provider?
• Valid key / quota left for that provider?
• Same “Knowledge Base version” selected? A KB that was edited but not re-published will throw an error. 3. Make sure the flow can actually start
• Confirm there is one (and only one) Start step.
• Delete/replace any detached blocks – an orphaned Code/Function step that expects a variable that no longer exists will produce a silent error as soon as the flow reaches it. 4. Look for undefined variables
• In the Debug panel, variables shown as “undefined” or “null” right before the crash almost always point to the culprit step (usually a Text, Condition, or API block that references that variable). 5. Check recent changes
• Roll back the last block(s) you added, then test again. If it runs, re-add the blocks one by one to isolate the exact step causing the issue. If the debug trace still isn’t clear, grab the red error line from the Debug panel and paste it back here – that message will pinpoint the step or service that’s failing. Docs: https://docs.voiceflow.com
• Every step the agent executes is listed there.
• The red ⚠️ line will show the exact block or API call that is failing – that detail often isn’t shown inside the live chat widget. 2. Compare the agent’s Settings → AI Model & Environment to the agents that work
• Same model provider?
• Valid key / quota left for that provider?
• Same “Knowledge Base version” selected? A KB that was edited but not re-published will throw an error. 3. Make sure the flow can actually start
• Confirm there is one (and only one) Start step.
• Delete/replace any detached blocks – an orphaned Code/Function step that expects a variable that no longer exists will produce a silent error as soon as the flow reaches it. 4. Look for undefined variables
• In the Debug panel, variables shown as “undefined” or “null” right before the crash almost always point to the culprit step (usually a Text, Condition, or API block that references that variable). 5. Check recent changes
• Roll back the last block(s) you added, then test again. If it runs, re-add the blocks one by one to isolate the exact step causing the issue. If the debug trace still isn’t clear, grab the red error line from the Debug panel and paste it back here – that message will pinpoint the step or service that’s failing. Docs: https://docs.voiceflow.com
Could be an LLM outage, try a OpenAi model see if that works.
Hey man, i tried but it's not working