Strange stack when loading BLOCK model

[09:54:02] [Client thread/ERROR] [FML]: Exception loading model for variant greatslopes:Slope#camo=false,dquad=northeast,slope=25shave2
net.minecraftforge.client.model.ModelLoaderRegistry$LoaderException: Exception loading model greatslopes:Slope#camo=false,dquad=northeast,slope=25shave2 with loader VariantLoader.INSTANCE, skipping
	at net.minecraftforge.client.model.ModelLoaderRegistry.getModel(ModelLoaderRegistry.java:153) ~[ModelLoaderRegistry.class:?]
	at net.minecraftforge.client.model.ModelLoader.func_177569_a(ModelLoader.java:241) ~[ModelLoader.class:?]
	at net.minecraft.client.renderer.block.model.ModelBakery.loadBlock(ModelBakery.java:145) ~[byo.class:?]
	at net.minecraftforge.client.model.ModelLoader.func_188640_b(ModelLoader.java:229) ~[ModelLoader.class:?]
	at net.minecraftforge.client.model.ModelLoader.func_177570_a(ModelLoader.java:146) ~[ModelLoader.class:?]
	at net.minecraft.client.renderer.block.model.ModelManager.func_110549_a(ModelManager.java:28) [byp.class:?]
	at net.minecraft.client.resources.SimpleReloadableResourceManager.func_110542_a(SimpleReloadableResourceManager.java:122) [bxi.class:?]
	at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:499) [bcx.class:?]
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:351) [bcx.class:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [Main.class:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_25]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
	at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Caused by: net.minecraftforge.client.model.ModelLoaderRegistry$LoaderException: Exception loading model greatslopes:block/slope25shave2.obj with loader INSTANCE, skipping
	at net.minecraftforge.client.model.ModelLoaderRegistry.getModel(ModelLoaderRegistry.java:153) ~[ModelLoaderRegistry.class:?]
	at net.minecraftforge.client.model.ModelLoader$WeightedRandomModel.<init>(ModelLoader.java:752) ~[ModelLoader$WeightedRandomModel.class:?]
	at net.minecraftforge.client.model.ModelLoader$VariantLoader.loadModel(ModelLoader.java:1185) ~[ModelLoader$VariantLoader.class:?]
	at net.minecraftforge.client.model.ModelLoaderRegistry.getModel(ModelLoaderRegistry.java:149) ~[ModelLoaderRegistry.class:?]
	... 15 more
Caused by: java.io.FileNotFoundException: greatslopes:models/item/slope25shave2.obj
	at net.minecraft.client.resources.FallbackResourceManager.func_110536_a(FallbackResourceManager.java:68) ~[bww.class:?]
	at net.minecraft.client.resources.SimpleReloadableResourceManager.func_110536_a(SimpleReloadableResourceManager.java:65) ~[bxi.class:?]
	at net.minecraftforge.client.model.obj.OBJLoader.loadModel(OBJLoader.java:82) ~[OBJLoader.class:?]
	at net.minecraftforge.client.model.ModelLoaderRegistry.getModel(ModelLoaderRegistry.java:149) ~[ModelLoaderRegistry.class:?]
	at net.minecraftforge.client.model.ModelLoader$WeightedRandomModel.<init>(ModelLoader.java:752) ~[ModelLoader$WeightedRandomModel.class:?]
	at net.minecraftforge.client.model.ModelLoader$VariantLoader.loadModel(ModelLoader.java:1185) ~[ModelLoader$VariantLoader.class:?]
	at net.minecraftforge.client.model.ModelLoaderRegistry.getModel(ModelLoaderRegistry.java:149) ~[ModelLoaderRegistry.class:?]
	... 15 more