Add better error message when fatjar cannot be resolved

1 files changed, 5 insertions, 2 deletions

diff --git a/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/DokkaTask.kt b/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/DokkaTask.kt
index 0412b8a7..16f6c83e 100644
--- a/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/DokkaTask.kt
+++ b/runners/gradle-plugin/src/main/kotlin/org/jetbrains/dokka/gradle/DokkaTask.kt
@@ -86,11 +86,14 @@ open class DokkaTask : DefaultTask() {
 
     private var outputDiagnosticInfo: Boolean = false // Workaround for Gradle, which fires some methods (like collectConfigurations()) multiple times in its lifecycle
 
-    private fun tryResolveFatJar(configuration: Configuration?): Set<File> {
+    private fun tryResolveFatJar(configuration: Configuration?, level: Int = 0): Set<File> {
+        val maxRetries = 10
         return try {
             configuration!!.resolve()
         } catch (e: Exception) {
-            project.parent?.let { tryResolveFatJar(configuration) } ?: throw e
+            if (level >= maxRetries)
+                throw IllegalStateException("Cannot resolve dokka fatjar! Make sure you have jcenter() in your repositories")
+            project.parent?.let { tryResolveFatJar(configuration, level + 1) } ?: throw e
         }
     }