Minecraftforge: [1.14.4] Mod resources not loaded during data generation

[Choonster]

Minecraft Version: 1.14.4

Forge Version: 28.1.90

Logs: https://gist.github.com/Choonster/2ee4d06856ca409f85b89728e9ddd47e

Steps to Reproduce:

1. Create a class that extends BlockStateProvider and register it during GatherDataEvent
2. In the registerStatesAndModels method, call BlockStateProvider#simpleBlock(Block) with a block belonging to the mod being developed.
   
   
   
   1. The call to ModelBuilder#texture (in the methods called by BlockStateProvider#simpleBlock(Block)) throws an exception like the following: IllegalArgumentException: Texture <texture> does not exist in any known resource pack
   
   

See my test mod for a full demonstration of this.

Description of issue:
Mod resources aren't being loaded during data generation, so ModelBuilder#texture throws an exception saying that the texture doesn't exist for texture files that actually do exist.

[HyCraftHD]

You need to add this to your build.gradle. Then it should find the existing resource pack:
https://github.com/MC-U-Team/Useful-Backpacks/blob/32922cd74ddb41f04897613dee301dd392fc3b88/build.gradle#L67

[Choonster]

@HyCraftHD Thanks, that fixes it.

The MDK's build.gradle should probably be updated to include that argument or it should have a default value set in the data generator code itself.

[DaemonUmbra]

Like this?
https://github.com/MinecraftForge/MinecraftForge/blob/5d622610826b8217d7ecc5d5b3cc19882ba26ff3/mdk/build.gradle#L77

[Choonster]

@DaemonUmbra That's where the argument would go, but it doesn't specify the --existing argument at the moment.

[DaemonUmbra]

Oh, I missed that bit

[stale[bot]]

This issue has been automatically marked as stale because it has not had activity in a long time. If this issue is still relevant and should remain open, please reply with a short explanation (e.g. "I have checked the code and this issue is still relevant because ___." or "Here's a screenshot of this issue on the latest version"). Thank you for your contributions!

[stale[bot]]

This issue has been automatically closed because it has not had activity in a long time. Please feel free to reopen it or create a new issue.