采用hello uniCloud 的演示程序，用微信小程序开发工具运行，直接就报错了。
in promise) MiniProgramError
[INVALID_OPERATION] [100007] this env is not enable anonymous login
Error: [INVALID_OPERATION] [100007] this env is not enable anonymous login
at e.<anonymous> (http://127.0.0.1:55807/appservice/common/vendor.js:8258:42)
at http://127.0.0.1:55807/appservice/common/vendor.js:8153:74
at Object.next (http://127.0.0.1:55807/appservice/common/vendor.js:8160:14)
at i (http://127.0.0.1:55807/appservice/common/vendor.js:8109:19)
