The code I have worked in 1.10.2, so I know everything is labelled properly and the texture is in the right place, but in 1.11.2 the potion icon in the player's inventory and on the HUD renders the missing texture.
I have looked for any changes, but everything I have found just confirms what I already have.

This is my current code (nothing flash, just what I got from a tutorial):
 

Spoiler

public class DTEffectGeneric extends Potion
{
	private final ResourceLocation iconTexture;
	
	public DTEffectGeneric(boolean isBadEffect, int liquidColor, String name)
	{
		super(isBadEffect, liquidColor);
		this.setPotionName(this, name);
		iconTexture = new ResourceLocation(Reference.MOD_ID, "/textures/misc/" + name + ".png");
	}

	public static void setPotionName(Potion potion, String potionName)
	{
		potion.setPotionName("effect." + Reference.MOD_ID + ":" + potionName);
	}

	@SideOnly(Side.CLIENT)
	@Override
	public void renderInventoryEffect(int x, int y, PotionEffect effect, Minecraft mc)
	{
		if (mc.currentScreen != null)
		{
			mc.getTextureManager().bindTexture(iconTexture);
			Gui.drawModalRectWithCustomSizedTexture(x + 6, y + 7, 0, 0, 18, 18, 18, 18);
		}
	}

	@SideOnly(Side.CLIENT)
	@Override
	public void renderHUDEffect(int x, int y, PotionEffect effect, Minecraft mc, float alpha)
	{
		mc.getTextureManager().bindTexture(iconTexture);
		Gui.drawModalRectWithCustomSizedTexture(x + 3, y + 3, 0, 0, 18, 18, 18, 18);
	}
}

 

My potion effects are being registered in the PreInit and the effects work properly, and the localised names are correct, so I assume there is something wrong with the resource path, but it worked as it is in 1.10 and I am not sure what changed.
Any help would be appreciated.

Edited June 22, 20178 yr by PegBeard
Issue solved

Are there errors in the console?

 

Do your potion names contain capital letters? In 1.11+, all resource paths have to be entirely lowercase.

I am getting this in the console, on load:

 

Spoiler

[Client thread/WARN]: Failed to load texture: dungeontactics:/textures/misc/cryo_effect.png
java.io.FileNotFoundException: dungeontactics:/textures/misc/cryo_effect.png
    at net.minecraft.client.resources.FallbackResourceManager.getResource(FallbackResourceManager.java:69) ~[FallbackResourceManager.class:?]
    at net.minecraft.client.resources.SimpleReloadableResourceManager.getResource(SimpleReloadableResourceManager.java:65) ~[SimpleReloadableResourceManager.class:?]
    at net.minecraft.client.renderer.texture.SimpleTexture.loadTexture(SimpleTexture.java:34) ~[SimpleTexture.class:?]
    at net.minecraft.client.renderer.texture.TextureManager.loadTexture(TextureManager.java:67) [TextureManager.class:?]
    at net.minecraft.client.renderer.texture.TextureManager.bindTexture(TextureManager.java:42) [TextureManager.class:?]
    at PegBeard.DungeonTactics.Effects.DTCryoEffect.renderHUDEffect(DTCryoEffect.java:57) [DTCryoEffect.class:?]
    at net.minecraft.client.gui.GuiIngame.renderPotionEffects(GuiIngame.java:500) [GuiIngame.class:?]
    at net.minecraftforge.client.GuiIngameForge.renderPotionIcons(GuiIngameForge.java:225) [GuiIngameForge.class:?]
    at net.minecraftforge.client.GuiIngameForge.renderGameOverlay(GuiIngameForge.java:173) [GuiIngameForge.class:?]
    at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:1142) [EntityRenderer.class:?]
    at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1140) [Minecraft.class:?]
    at net.minecraft.client.Minecraft.run(Minecraft.java:407) [Minecraft.class:?]
    at net.minecraft.client.main.Main.main(Main.java:118) [Main.class:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_131]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_131]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131]
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_131]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_131]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131]
    at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
    at GradleStart.main(GradleStart.java:26) [start/:?]

Everything is lowercase and the textures are in the specified location - as I mentioned, everything was working in 1.10, my code hasn't changed and the textures haven't been moved/renamed either

Just fixed it - I had an extra '/' in the resource path.
Don't know how it got there, but it's weird that it worked in 1.10 but not 1.11