fix

virgo.api/src/main/java/com/bosshand/virgo/api/service/ProjectService.java

@@ -220,10 +220,12 @@ public class ProjectService {
 		List<String> bimIds = new ArrayList<>();
 		List<BimModelTarget> bimList = bimModelTargetDao.getProjectItemTargetIds(targetIds);
 		for (BimModelTarget bim : bimList) {
-			String[] split = bim.getBims().split(",");
-			for (int i = 0; i < split.length; i++) {
-				bimIds.add(split[i]);
-				bimModelMap.put(split[i], bim.getProjectItemTargetId());
+			if (bim.getBims() != null) {
+				String[] split = bim.getBims().split(",");
+				for (int i = 0; i < split.length; i++) {
+					bimIds.add(split[i]);
+					bimModelMap.put(split[i], bim.getProjectItemTargetId());
+				}
 			}
 		}