小编Xia*_* Hu的帖子

这确实是一个意想不到的问题。

当我在终端输入“ npm run start”时，出现错误。

[Nest] 40671   - 2018-10-20 17:46:37   [ExceptionHandler] Nest can't resolve dependencies of the USERRepository (?). Please make sure that the argument at index [0] is available in the current context. +22ms
Error: Nest can't resolve dependencies of the USERRepository (?). Please make sure that the argument at index [0] is available in the current context.
    at Injector.lookupComponentInExports (/Users/huxiao/OneDrive/Coding/wtapm/node_modules/@nestjs/core/injector/injector.js:139:19)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:160:7)
    at Function.Module.runMain (module.js:703:11)
    at Object.<anonymous> (/Users/huxiao/OneDrive/Coding/wtapm/node_modules/ts-node/src/_bin.ts:177:12)
    at Module._compile (module.js:660:30)
    at Object.Module._extensions..js (module.js:671:10)
    at …