Vue: TypeError: Cannot read property 'dispatch' of undefined при ... TypeError: Cannot read property 'sendTransaction' of null wenn Sie diesen Befehl ausführen: $ npx hardhat run scripts/deploy.js --network ropsten mit HardHat im Ropsten-Netzwerk. TypeError cannot read property 'catch' of undefinedhalf alive half dead tree. [已解决]“TypeError: Cannot read property ‘xxx‘ of undefined“报错 … It throws an exception, it does not return a promise. As such, there is no promise object on which the then(…).catch(…) methods could be invoked. T... 0. typeerror cannot read property 'catch' of undefined jest Router原型链上的push重写报undefined错误 Hey there, I am having troubles with implementing a promise (new to promises). Related errors: TypeError: someVal is null, Unable to get property ‘foo’ of undefined or null reference .