VM472:1 thirdScriptError   sdk uncaught third Error   page is not defined   ReferenceError: page is not defined     at http://127.0.0.1:37499/appservice/pages/index/index.js:3:1     at require (http://127.0.0.1:37499/appservice/__dev__/WAService.js:1:716549)     at <anonymous>:18:7     at HTMLScriptElement.scriptLoaded (http://127.0.0.1:37499/appservice/appservice?t=1543897230013:1206:23)