Update CodePush.js

Author: geof90

CodePush.js

@@ -354,7 +354,11 @@ async function syncInternal(options = {}, syncStatusChangeCallback, downloadProg
         const dialogButtons = [{
           text: null,
           onPress: async () => {
-            resolve(await doDownloadAndInstall());
+            try {
+              resolve(await doDownloadAndInstall());
+            } catch (downloadError) {
+              reject(downloadError);
+            }
           }
         }];
 
@@ -451,4 +455,4 @@ if (NativeCodePush) {
   log("The CodePush module doesn't appear to be properly installed. Please double-check that everything is setup correctly.");
 }
 
-module.exports = CodePush;
+module.exports = CodePush;