[SOLUTION] Blender 5.0 Cache Folder Fix - Tested and Working

[nickvanluyk]

Blender 5.0 Cache Folder Issue - Fixed! 🎉

TL;DR

If you're on Blender 5.0 and can't set the cache folder (browse button does nothing, or TypeError: this type doesn't support IDProperties), I've created a working fix!

Download the fixed addon here: #1004

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The Problem

Many users (including me) hit this issue in Blender 5.0:

• Cache folder browse button doesn't work
• Can't set cache folder at all
• Error: TypeError: this type doesn't support IDProperties
• Basemap features unusable

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Root Cause

Blender 5.0 removed IDProperties support from AddonPreferences. The old code used dictionary-style property access (self.get() and self["property"]) which no longer works.

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The Solution

I worked with AI to create a fix that:

• ✅ Works on Blender 5.0 (all platforms - Windows/Linux/macOS)
• ✅ Maintains backward compatibility
• ✅ Adds helpful "Test Cache Folder" and "Set Cache Folder (Manual)" buttons
• ✅ Better error messages and console output
• ✅ Auto-creates cache folders if they don't exist

Technical details in the issue: #1004

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Installation

1. Remove old BlenderGIS addon
2. Download the fixed version from issue [FIXED] Blender 5.0 Cache Folder Issue - Working Solution Attached #1004
3. Install the zip file (don't extract)
4. Enable the addon
5. Use "Set Cache Folder (Manual)" button in preferences
6. Click "Test Cache Folder" to verify

That's it! Cache folder now works.

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New Features in the Fix

Two helpful buttons in Basemaps preferences:

• 🧪 Test Cache Folder - Verifies folder exists and is writable
• 📁 Set Cache Folder (Manual) - Type path directly (bypasses file browser issues)

Both print detailed info to the console for debugging.

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Testing & Feedback

I've tested this on Windows + Blender 5.0 and it works perfectly.

Would love feedback from:

• Linux users
• macOS users
• People on different Blender 5.0.x versions
• Anyone who previously couldn't set cache folder

Please test and report back! Drop a comment here or on issue #1004.

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For the Maintainer

@domlysz - I have the complete fix ready. Happy to create a PR or share the modified files however works best for you. Just let me know!

The fix is clean, maintains compatibility, and should help all the Blender 5.0 users who are currently stuck.

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Using BlenderGIS After the Fix

Once cache folder works, you can:

• Download basemap tiles (finally!)
• Import DEM terrain data
• Use all the GIS features that need caching

Everything caches properly and the addon works as expected.

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Big thanks to the BlenderGIS project - amazing tool for geospatial work in Blender! 🌍

Hope this helps the community! Let me know if anyone has questions.

[domlysz]

Hi thank you very much for your help,! Sorry the delay I think my mind is now too far from this project to be really active... Can you make a PR for this ?

[nickvanluyk]

Hi, Here is the PR: #1011