VM473:1 Uncaught (in promise) thirdScriptError

errCode: -404011 cloud function execution error | errMsg: cloud.callFunction:fail requestID b07cf7a0-9957-11ea-8093-525400f41496, cloud function service error code -504002, error message ReferenceError: wx is not defined

    at Object.<anonymous> (/var/user/index.js:4:12)

    at Module._compile (internal/modules/cjs/loader.js:701:30)

    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)

    at Module.load (internal/modules/cjs/loader.js:600:32)

    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)

    at Function.Module._load (internal/modules/cjs/loader.js:531:3)

    at Module.require (internal/modules/cjs/loader.js:637:17)

    at require (internal/modules/cjs/helpers.js:22:18)

    at Object.module.exports.load (/var/runtime/node10/UserFunction.js:22:19)

    at Runtime.handleOnce (/var/runtime/node10/Runtime.engine.js:84:38); at cloud.callFunction api; 

Error: errCode: -404011 cloud function execution error | errMsg: cloud.callFunction:fail requestID b07cf7a0-9957-11ea-8093-525400f41496, cloud function service error code -504002, error message ReferenceError: wx is not defined