If you are using custom Python classes in your game, Ren'Py might fail to reconstitute them on different platforms if they aren't registered correctly. Use renpy.object as the base class for custom objects to ensure they serialize cleanly across platforms. 3. Implement the after_load Label
You must first find where the original saves are stored. Ren'Py stores files in different locations depending on the operating system:
If possible, try loading the save file on the original device or platform where it was created. This can help you determine if the issue is device-specific.
: You moved a save file from one computer/phone to another.
You can try setting the renpy.config.savedir variable to a specific directory that is accessible across devices, such as a cloud storage folder or a USB drive. This will allow Ren'Py to save and load files from that directory. renpy this save was created on a different device link
: Save your changes and restart your game. This should allow you to save and load files from the new directory.
Users should see a prompt asking to trust the save file rather than a blank screen or a crash. Summary of Solutions Choose "Yes/Trust" when prompted by Ren'Py. PC to Android/Phone Manual signing_keys.txt replacement on the mobile device. Developer Issue Update screens.rpy to support gui.UNKNOWN_TOKEN prompts.
Safely links your progress across hardware. ⚠️ The Catch Repetitive: Can feel tedious if you swap devices often. False Alarms: Sometimes triggers after simple OS updates. Minor Friction: Breaks the "immersion" for a split second.
Open your project's screens.rpy file and locate your screen confirm(message, yes_action, no_action): block. Ensure it accommodates unknown message configurations properly. You need to make sure the interface handles the following variables safely: If you are using custom Python classes in
init python: config.save_json_save = True config.save_on_quit = True multi_persistent = True
If you are a visual novel developer, you want to prevent your players from encountering this error when they swap between your PC and Android builds. 1. Avoid Storing Absolute Paths
Have you run into this error? Drop a comment below with your Ren’Py version and platform.
If you are transferring your own saves between devices, you can usually bypass this by simply selecting to trust the save when prompted. If the screen is blank or the prompt doesn't appear, you may need to update your game's confirm screen code to support these new security prompts. How to Fix or Bypass the Security Warning Implement the after_load Label You must first find
(If you want, I can turn the "Sample user-facing post text" into a polished social media or forum post for a specific platform—tell me which.)
It prevents unintended errors from loading data that might reference files or paths that don't exist on the new device. How to Link Devices and Sync Saves
Ren’Py includes a security and stability feature. Each save file is cryptographically tied to: