diff --git a/plugins/gradle/src/org/jetbrains/plugins/gradle/service/project/data/ExternalProjectDataService.java b/plugins/gradle/src/org/jetbrains/plugins/gradle/service/project/data/ExternalProjectDataService.java
index 8f41ea7ea49f..7ad9473f15f9 100644
--- a/plugins/gradle/src/org/jetbrains/plugins/gradle/service/project/data/ExternalProjectDataService.java
+++ b/plugins/gradle/src/org/jetbrains/plugins/gradle/service/project/data/ExternalProjectDataService.java
@@ -126,13 +126,16 @@ public class ExternalProjectDataService implements ProjectDataService<ExternalPr
     ExternalProject externalProject = myExternalRootProjects.get(Pair.create(systemId, projectRootDir));
     if (LOG.isDebugEnabled()) {
       LOG.debug("Can not find data for project at: " + projectRootDir);
-      LOG.debug("Existing imported projects paths: " + ContainerUtil.map(myExternalRootProjects.entrySet(),
-                                                                         new Function<Map.Entry<Pair<ProjectSystemId, File>, ExternalProject>, Object>() {
-                                                                           @Override
-                                                                           public Object fun(Map.Entry<Pair<ProjectSystemId, File>, ExternalProject> entry) {
-                                                                             return Pair.create(entry.getKey(), entry.getValue().getProjectDir());
-                                                                           }
-                                                                         }));
+      LOG.debug("Existing imported projects paths: " + ContainerUtil.map(
+        myExternalRootProjects.entrySet(),
+        new Function<Map.Entry<Pair<ProjectSystemId, File>, ExternalProject>, Object>() {
+          @Override
+          public Object fun(Map.Entry<Pair<ProjectSystemId, File>, ExternalProject> entry) {
+            //noinspection ConstantConditions
+            if (!(entry.getValue() instanceof ExternalProject)) return null;
+            return Pair.create(entry.getKey(), entry.getValue().getProjectDir());
+          }
+        }));
     }
     return externalProject;
   }
diff --git a/plugins/gradle/tooling-extension-impl/src/org/jetbrains/plugins/gradle/tooling/builder/ExternalProjectBuilderImpl.groovy b/plugins/gradle/tooling-extension-impl/src/org/jetbrains/plugins/gradle/tooling/builder/ExternalProjectBuilderImpl.groovy
index 096b1e6d8d5b..254acf26e171 100644
--- a/plugins/gradle/tooling-extension-impl/src/org/jetbrains/plugins/gradle/tooling/builder/ExternalProjectBuilderImpl.groovy
+++ b/plugins/gradle/tooling-extension-impl/src/org/jetbrains/plugins/gradle/tooling/builder/ExternalProjectBuilderImpl.groovy
@@ -133,13 +133,13 @@ class ExternalProjectBuilderImpl implements ModelBuilderService {
       ExternalSourceDirectorySet resourcesDirectorySet = new DefaultExternalSourceDirectorySet()
       resourcesDirectorySet.name = sourceSet.resources.name
       resourcesDirectorySet.srcDirs = sourceSet.resources.srcDirs
-      resourcesDirectorySet.outputDir = sourceSet.output.resourcesDir
+      resourcesDirectorySet.outputDir = chooseNotNull(sourceSet.output.resourcesDir, sourceSet.output.classesDir, project.buildDir)
       resourcesDirectorySet.inheritedCompilerOutput = inheritOutputDirs
 
       ExternalSourceDirectorySet javaDirectorySet = new DefaultExternalSourceDirectorySet()
       javaDirectorySet.name = sourceSet.allJava.name
       javaDirectorySet.srcDirs = sourceSet.allJava.srcDirs
-      javaDirectorySet.outputDir = sourceSet.output.classesDir
+      javaDirectorySet.outputDir = chooseNotNull(sourceSet.output.classesDir, project.buildDir);
       javaDirectorySet.inheritedCompilerOutput = inheritOutputDirs
 //      javaDirectorySet.excludes = javaExcludes + sourceSet.java.excludes;
 //      javaDirectorySet.includes = javaIncludes + sourceSet.java.includes;
@@ -173,6 +173,10 @@ class ExternalProjectBuilderImpl implements ModelBuilderService {
     result
   }
 
+  static <T> T chooseNotNull(T ... params) {
+    params.findResult("", { it })
+  }
+
   static getFilters(Project project, String taskName) {
     def includes = []
     def excludes = []