Updated the files.

my-app/node_modules/@babel/helpers/lib/helpers/asyncGeneratorDelegate.js

@@ -0,0 +1,52 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = _asyncGeneratorDelegate;
+var _OverloadYield = require("OverloadYield");
+function _asyncGeneratorDelegate(inner) {
+  var iter = {},
+    waiting = false;
+  function pump(key, value) {
+    waiting = true;
+    value = new Promise(function (resolve) {
+      resolve(inner[key](value));
+    });
+    return {
+      done: false,
+      value: new _OverloadYield(value, 1)
+    };
+  }
+  iter[typeof Symbol !== "undefined" && Symbol.iterator || "@@iterator"] = function () {
+    return this;
+  };
+  iter.next = function (value) {
+    if (waiting) {
+      waiting = false;
+      return value;
+    }
+    return pump("next", value);
+  };
+  if (typeof inner.throw === "function") {
+    iter.throw = function (value) {
+      if (waiting) {
+        waiting = false;
+        throw value;
+      }
+      return pump("throw", value);
+    };
+  }
+  if (typeof inner.return === "function") {
+    iter.return = function (value) {
+      if (waiting) {
+        waiting = false;
+        return value;
+      }
+      return pump("return", value);
+    };
+  }
+  return iter;
+}
+
+//# sourceMappingURL=asyncGeneratorDelegate.js.map