X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.graph.db%2Fsrc%2Forg%2Fsimantics%2Fgraph%2Fdb%2FStreamingTransferableGraphImportProcess.java;h=78c369f96679f9ba467b76df8bdc9f074d28e503;hp=754ae61233f1e2b36460801a2743495b967af439;hb=4b7c3f8eacf1e6e018d38f5b984c0ccd53919b58;hpb=e5b73a681e5035fae3b53825dceb3bbe48e921d3

diff --git a/bundles/org.simantics.graph.db/src/org/simantics/graph/db/StreamingTransferableGraphImportProcess.java b/bundles/org.simantics.graph.db/src/org/simantics/graph/db/StreamingTransferableGraphImportProcess.java
index 754ae6123..78c369f96 100644
--- a/bundles/org.simantics.graph.db/src/org/simantics/graph/db/StreamingTransferableGraphImportProcess.java
+++ b/bundles/org.simantics.graph.db/src/org/simantics/graph/db/StreamingTransferableGraphImportProcess.java
@@ -289,7 +289,7 @@ public class StreamingTransferableGraphImportProcess implements TransferableGrap
 		ClusteringSupport support = graph.getService(ClusteringSupport.class);
 		if(id == Extensions.ROOT_LIBRARY_CLUSTER_SET || id == Extensions.INDEX_ROOT_CLUSTER_SET) return;
 		Resource indexRootClusterSetResource = rootLibrary;
-		if(support.isClusterSet(indexRoot)) {
+		if(indexRoot != null && support.isClusterSet(indexRoot)) {
 			indexRootClusterSetResource = indexRoot;
 		} else {
 			graph.setClusterSet4NewResource(rootLibrary);