In most cases, the LayOut ↔ SketchUp linking issue comes down to file location, naming, or how the reference is being managed.
Below is a structured checklist that can help you to troubleshoot. We recommend working through it top‑to‑bottom.
1. First: Check the reference status in LayOut (most important)
In LayOut:
- Go to File → Document Setup → References
- Look at the SketchUp reference:
- Is it red / missing?
- Is the path blank or pointing to a temp folder?
- If it is missing:
- Select it
- Click Relink
- Manually browse to the actual
.skpfile
This is the only place that updates all viewports at once. Relinking via right‑click on a viewport only affects that single viewport and often causes confusion. [help.sketchup.com]
2. Make sure the SketchUp file is saved locally (not cloud-synced)
If LayOut cannot see the SketchUp file at all in the Relink browser, even though you know it exists, this is almost always the cause.
✅ Best practice (strongly recommended by SketchUp staff):
- Save both the
.layoutfile and the.skpfile:- On your internal drive
- In a regular folder (e.g. Documents / Projects)
❌ Avoid:
- Dropbox, Google Drive, OneDrive
- Network drives
- External drives
Community cases show LayOut may fail to list cloud-based files entirely, or create broken “temp” references that won’t refresh. [forums.sketchup.com], [forums.sketchup.com]
3. Remove punctuation and special characters from file & folder names
This one surprises people, but it’s real.
LayOut can refuse to link or even hide
.skp files if there are unsupported characters in:- File names
- Folder names anywhere in the path
Avoid characters like:
: ; & / \ ? % #
✅ Example:
- ❌
Project:Stage-02_Final.skp - ✅
Project_Stage_02_Final.skp
Multiple forum cases confirm that removing punctuation immediately made files visible again in the Relink dialog. [forums.sketchup.com], [forums.sketchup.com]
4. Confirm you’re saving the SketchUp model (not just editing it)
LayOut only detects changes after the SketchUp file is saved.
Correct workflow:
- Open the model from LayOut
(Right‑click viewport → Open with SketchUp) - Make changes
- File → Save in SketchUp
- Return to LayOut → update reference if prompted
This is the workflow SketchUp documents as the most reliable way to keep references synced. [help.sketchup.com]
5. Watch for “temporary” references caused by copy‑paste
If you:
- Sent a model to LayOut
- Then copied viewports between LayOut files
LayOut can end up with multiple references to what looks like the same model, including hidden temp copies. This often causes:
- Red references
- Models not appearing as available to link
You can spot this in Document Setup → References if you see more than one
.skp that should be the same file. [forums.sketchup.com]
6. If the file still doesn’t appear as linkable
Do this reset sequence (safe and commonly recommended):
- Close SketchUp
- In LayOut:
- Document Setup → References
- Unlink the missing reference
- Save & close LayOut
- Reopen LayOut
- Insert → SketchUp Model
- Insert the
.skpagain from its local folder
This forces LayOut to rebuild a clean reference.