try AccessTransformer

Author: RecursiveG

build.gradle

@@ -30,7 +30,7 @@ minecraft {
 jar
 {
     manifest {
-        attributes 'FMLCorePlugin': 'org.devinprogress.YAIF.TransformerLoader'
+        attributes 'FMLCorePlugin': 'org.devinprogress.YAIF.Transformer.Loader'
         attributes 'FMLCorePluginContainsFMLMod': true
     }
 }

src/main/java/org/devinprogress/YAIF/Bridges/DebugBridge.java

@@ -0,0 +1,4 @@
+public net.minecraft.client.gui.inventory.GuiEditSign field_146848_f #tileSign
+public net.minecraft.client.gui.inventory.GuiEditSign field_146851_h #editLine
+public net.minecraft.client.gui.GuiScreen             func_73869_a   #keyTyped
+public net.minecraft.client.gui.GuiChat               field_146409_v #defaultInputFieldText