The five-point compatibility check
- Device: desktop, mobile, Chromebook or console.
- Edition: Java Edition or Bedrock Edition.
- Game version: the complete number shown in Minecraft.
- Loader: Forge or another loader required by the Java build.
- File format: .jar for Java mods; .mcaddon/.mcpack for Bedrock add-ons.
Java compatibility
Java mods are version-sensitive. A build made for 1.12.2 should be launched with the matching game and Forge profile. Moving it into a newer mods folder does not convert it.
Bedrock compatibility
The inspected Jenny Dweller add-on contains linked behavior and resource packs at version 0.0.1 with minimum engine 1.17.0. Its manifest does not declare a maximum version, so a broad version range should not be treated as a verified test result.
Signs of a mismatch
- The file opens in an unrelated program.
- Forge reports an incompatible or missing dependency.
- The mod is absent from the Mods list.
- A Bedrock pack imports but cannot be activated.
- The game crashes before reaching the menu.
Frequently asked questions
Can I rename a .jar to .mcaddon?+
No. The formats contain different code and pack structures; renaming does not convert them.
Will a 1.12.2 mod work with newer Forge?+
Normally no. Use the Forge build intended for the same Minecraft version.
