Unknown Node

What it is: A placeholder that appears when your workflow contains a node type that can’t be found or loaded.

Perfect for: Troubleshooting • Workflow migration • Browser extension issues • Version compatibility

Why You See This

Unknown Nodes appear when:

Node was removed - The node type no longer exists in the current version
Browser extension missing - A custom node’s browser extension isn’t installed
Version mismatch - Workflow was created with a different version
Typo in node name - Original node type name was incorrect

What It Does

The Unknown Node is a safety feature that:

Preserves your workflow - Keeps it loadable even with missing nodes
Shows clear warnings - Visual indicator of the problem
Saves original data - Keeps the node’s configuration for recovery
Suggests fixes - Provides replacement options when possible

Common Scenarios

Deprecated Node

What happened: Node was removed in a system update Error message: “Node type deprecated in version 2.0.0” Solution: Replace with the suggested newer node type

Missing Browser extension

What happened: Custom node’s browser extension isn’t installed Error message: “Browser extension ‘custom-ai-nodes’ not found” Solution: Reinstall the browser extension or replace with built-in node

Version Mismatch

What happened: Workflow from different system version Error message: “Node type not found” Solution: Update workflow or find equivalent node

Typo in Name

What happened: Original node name was incorrect Error message: “Node type ‘typo-node-name’ not recognized” Solution: Replace with correct node type

How to Fix Unknown Nodes

Step 1: Identify the Problem

Look at the error message to understand what’s wrong:

Check the original node type name
Note any suggested replacement
See if it mentions a missing browser extension

Step 2: Find a Solution

For deprecated nodes:

Use the suggested replacement node
Copy over compatible settings from the original

For missing plugins:

Reinstall the browser extension if you need it
Replace with a built-in node that does the same thing
Remove the node if it’s not essential

For version mismatches:

Update your workflow to use current node types
Check documentation for equivalent nodes

Step 3: Replace the Node

Delete the Unknown Node from your workflow
Add the replacement node (use suggested node if available)
Copy settings from the original configuration if compatible
Test your workflow to make sure it works

Prevention Tips

✅ Best Practices

Keep workflows updated - Regularly check for deprecated nodes
Document dependencies - Note which plugins your workflows need
Backup before updates - Save workflow copies before system updates
Test after changes - Verify workflows work after any updates

❌ Common Mistakes

Ignoring Unknown Nodes - They won’t work and will break your workflow
Not checking browser extension status - Missing plugins cause Unknown Nodes
Skipping update notes - System updates often deprecate old nodes
No workflow backups - Makes recovery much harder

Quick Troubleshooting

Unknown Node after system update → Check release notes for deprecated nodes and use suggested replacements

Missing browser extension error → Reinstall the browser extension or replace with built-in equivalent

Workflow won’t run → Replace all Unknown Nodes with working alternatives

Can’t find replacement → Check Node Types Overview for similar functionality

What’s Next?

Find replacements: Browse Built-in Node Types to find nodes that do what you need.

Learn about plugins: Check browser extension documentation if you need to reinstall missing plugins.

Get help: Visit Troubleshooting Guides for more workflow problem-solving tips.