add the minecraft repo (required for this to work on mac)

build.gradle

@@ -25,6 +25,9 @@ subprojects {
     }
 
     repositories {
+
+        maven { url "https://libraries.minecraft.net/" }
+
         mavenCentral()
 
         maven {
@@ -50,4 +53,4 @@ subprojects {
     tasks.withType(GenerateModuleMetadata) {
         enabled = false
     }
-}
+}