fix typeError happening in tests

Author: tsullivan

x-pack/plugins/task_manager/task_manager.ts

@@ -98,6 +98,7 @@ export class TaskManager {
             this.isInitialized = true;
           })
           .catch((err: Error) => {
+            // FIXME: check the type of error to make sure it's actually an ES error
             logger.warning(err.message);
 
             // rety again to initialize store and poller, using the timing of

x-pack/plugins/task_manager/task_store.ts

@@ -133,7 +133,8 @@ export class TaskStore {
         filter_path: '*.version',
       });
       // extract the existing version
-      existingVersion = templateCheck[templateName].version || 0;
+      const template = templateCheck[templateName] || {};
+      existingVersion = template.version || 0;
     } catch (err) {
       if (err.statusCode !== 404) {
         throw err; // ignore not found