update

Author: zhiyuanliang-ms

src/refresh/RefreshTimer.ts

@@ -7,7 +7,7 @@ export class RefreshTimer {
 
     constructor(interval: number) {
         if (interval <= 0) {
-            throw new RangeError(`Refresh interval must be greater than 0. Given: ${this.interval}`);
+            throw new RangeError(`Refresh interval must be greater than 0. Given: ${interval}`);
         }
 
         this.interval = interval;