提供云媒体服务器图片 云开发 把媒体文件上传到微信服务器 已知报错

这是云函数的报错信息：

-05-11T09:02:01.138Z error { Error: errCode: -501007 invalid parameters | errMsg: customerServiceMessage.uploadTempMedia:fail Invalid request param

at new CloudSDKError (/var/user/node_modules/wx-server-sdk/index.js:6166:28)

at Object. (/var/user/node_modules/wx-server-sdk/index.js:421:35)

at step (/var/user/node_modules/tslib/tslib.js:133:27)

at Object.next (/var/user/node_modules/tslib/tslib.js:114:57)

at fulfilled (/var/user/node_modules/tslib/tslib.js:104:62)

at

at process._tickCallback (internal/process/next_tick.js:188:7)

errCode: -501007,

errMsg: 'customerServiceMessage.uploadTempMedia:fail Invalid request param' }