将JSON数据分配给变量并通过React中的状态访问它时出错

I recently started with React.js and have been trying build a simple weather app. Had no issues with the GET request, as the console is printing out the JSON string received from the OpenWeatherMap API, but there seems to be an issue with assigning the JSON to a local variable and then accessing its properties.I recently started with React.js and have been