Fixed an issue with the generated POM

build.gradle

@@ -14,6 +14,17 @@ ext.disguisesVersion = '9.0.2'
 [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
 
 repositories {
+    mavenCentral()
+
+    maven {
+        name 'Spigot'
+        url 'https://hub.spigotmc.org/nexus/content/groups/public/'
+    }
+
+    maven {
+        url 'https://oss.sonatype.org/content/groups/public/'
+    }
+
     maven {
         name 'dmulloy2-repo'
         url 'http://repo.dmulloy2.net/content/groups/public/'
@@ -90,7 +101,8 @@ file('libs').mkdirs()
 ant.get src: 'http://server.o2gaming.com/downloads/spigot-1.9.jar', dest: file('libs'), verbose: false, skipexisting: true
 
 dependencies {
+    compile "org.spigotmc:spigot-api:$project.ext.spigotVersion"
     compile 'com.comphenix.protocol:ProtocolLib:3.7.0-SNAPSHOT'
-    compile name: 'spigot-1.9'
+    compile group: "spigot", name: 'spigot-1.9'
     testCompile group: 'junit', name: 'junit', version: '4.10'
 }