I'm trying to access `net.minecraft.client.gui.GuiScreen.buttonList` but the item is protected. After googling a bit I found this thread, but I couldn't understand suggestion given, and I don't want to use reflection as it seems like an overkill solution for a simple problem. I did some research on access transformers, and following what this source suggests, I created a file named `MyMod/src/main/resources/META-INF/accesstransformers.cfg` and put `public net.minecraft.client.gui.GuiScreen buttonList` in it. However, when running `./gradlew build`, I get the following error:

MyMod/build/sources/main/java/com/example/mymod/MyMod.java:52: error: buttonList has protected access in GuiScreen
        for (GuiButton button : inventoryEffectRenderer.buttonList) {
                                                       ^

If I add `accessTransformer = file("src/main/resources/META-INF/accesstransformer.cfg")` to `build.gradle`, as suggested in the same source, I get this error instead:

FAILURE: Build failed with an exception.

* Where:
Build file 'MyMod/build.gradle' line: 39

* What went wrong:
A problem occurred evaluating root project 'MyMod'.
> No such property: accessTransformer for class: net.minecraftforge.gradle.user.patcherUser.forge.ForgeExtension_Decorated
  Possible solutions: accessTransformers

 I am using the ForgeGradle 2.1 snapshot on Gradle 2.7, as is provided with the 1.8.9 MDK. 

Edited August 13, 20232 yr by yaq5aoyzjke195nb

The issue was fixed after renaming `MyMod/src/main/resources/META-INF/accesstransformers.cfg` to `MyMod/src/main/resources/META-INF/mymod_at.cfg`.