From b3f7d39398564bfb8d59bfd7b5d04fd34ba81313 Mon Sep 17 00:00:00 2001
From: Nick K <Gocnak@users.noreply.github.com>
Date: Fri, 21 Dec 2018 07:49:06 -0500
Subject: [PATCH] fix(popover): null check the ref before disposing (#1086)

---
 src/framework/theme/components/popover/popover.directive.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/framework/theme/components/popover/popover.directive.ts b/src/framework/theme/components/popover/popover.directive.ts
index be0a49c206..c37814967f 100644
--- a/src/framework/theme/components/popover/popover.directive.ts
+++ b/src/framework/theme/components/popover/popover.directive.ts
@@ -162,7 +162,9 @@ export class NbPopoverDirective implements AfterViewInit, OnDestroy {
   ngOnDestroy() {
     this.alive = false;
     this.hide();
-    this.ref.dispose();
+    if (this.ref) {
+      this.ref.dispose();
+    }
   }
 
   show() {