Add build.gradle for project :

base/build.gradle

@@ -3,13 +3,6 @@ plugins {
     id "io.freefair.lombok" version "${pluginLombok}"
 }
 
-group = project.group
-version = project.versioningVersion + "-" + project.versioningType + project.versioningTyperelease + project.versioningFork
-
-repositories {
-    mavenCentral()
-}
-
 dependencies {
     // Lombok
     compileOnly 'org.projectlombok:lombok:' + project.dependencyLombok

build.gradle

@@ -0,0 +1,19 @@
+plugins {
+    id 'java'
+    id "io.freefair.lombok" version "${pluginLombok}"
+}
+
+dependencies {
+    // Lombok
+    compileOnly 'org.projectlombok:lombok:' + project.dependencyLombok
+    annotationProcessor 'org.projectlombok:lombok:' + project.dependencyLombok
+}
+
+allprojects {
+    group = project.group
+    version = project.versioningVersion + "-" + project.versioningType + project.versioningTyperelease + project.versioningFork
+
+    repositories {
+        mavenCentral()
+    }
+}

testapp/build.gradle

@@ -1,15 +1,8 @@
 plugins {
-    id 'com.github.johnrengelman.shadow' version "${pluginShadow}"
     id 'java'
     id 'application'
     id "io.freefair.lombok" version "${pluginLombok}"
-}
-
-group = project.group
-version = project.versioningVersion + "-" + project.versioningType + project.versioningTyperelease + project.versioningFork
-
-repositories {
-    mavenCentral()
+    id 'com.github.johnrengelman.shadow' version "${pluginShadow}"
 }
 
 dependencies {