图片上传报错

[lzzqwe]

POST http://localhost:3000/admin/api/upload 500 (Internal Server Error)
upload @ element-ui.common.js?2ca7:29063
post @ element-ui.common.js?2ca7:29369
upload @ element-ui.common.js?2ca7:29297
eval @ element-ui.common.js?2ca7:29288
uploadFiles @ element-ui.common.js?2ca7:29286
handleChange @ element-ui.common.js?2ca7:29267
invokeWithErrorHandling @ vue.runtime.esm.js?0261:1854
invoker @ vue.runtime.esm.js?0261:2179
original._wrapper @ vue.runtime.esm.js?0261:6917