按照L7教程，初始化高德底图，网页显示这个错误怎么解决？

[Jason-gyj]

Uncaught runtime errors:：
ERROR
Cannot read properties of null (reading 'appendChild')TypeError: Cannot read properties of null (reading appendChild')
at AMapService.creatMapContainer (http://localhost:3000/static/js/bundle.js:55425:16)
at AMapService.callee$ (http://localhost:3000/static/js/bundle.js:50199:43)
at tryCatch (http://localhost:3000/static/js/bundle.js:169891:16)
at Generator. (http://localhost:3000/static/js/bundle.js:169979:17)
at Generator.next (http://localhost:3000/static/js/bundle.js:169920:21)
at asyncGeneratorStep (http://localhost:3000/static/js/bundle.js:171673:24)
at next (http://localhost:3000/static/js/bundle.js:171692:9)

[lzxue]

直接看官方demo