Fixing rolling failure

.gitignore

@@ -81,3 +81,4 @@ _build
 _package
 tests/Tools/target
 src/Tools/target/
+/_temp

src/Tools/vmOpsTool/VMWareImpl.java

@@ -196,8 +196,7 @@ public class VMWareImpl implements IVMWare {
             if (snapshotMor == null) {
                 System.out.printf("##vso[task.logissue type=error;code=USERINPUT_SnapshotNotFound;TaskId=%s;]\n",
                         Constants.taskId);
-                System.err.println(snapshotNotFoundErr);
-                throw new Exception();
+                throw new Exception(snapshotNotFoundErr);
             }
         } else {
             System.out.printf("##vso[task.logissue type=error;code=USERINPUT_SnapshotNotFound;TaskId=%s;]\n",