导入打字稿时找不到此相对模块

时间:2019-10-02 09:08:43

标签: typescript vue.js

优先注意事项:Stackoverflow上存在大量“找不到相对模块”问题。我已经浏览了尽可能多的内容,它们不是重复的。请不要将此标记为重复。

我有一个vue create设置的使用Babel和Typescript的Vue项目,然后我使用以下命令生成了一些gRPC-Web / Protobuf代码:

cd src
protoc -I=../../protos ../../protos/foo.proto --js_out=import_style=typescript:. --grpc-web_out=import_style=typescript,mode=grpcweb:.

这会在src目录中生成以下文件:

  • foo_pb.d.ts(Protobuf消息的Typescript定义)
  • empty.jsmemory.js(Protobuf消息)
  • FooServiceClientPb.ts(gRPC网络代码)

但是,当我npm run servenpm run build出现此错误时:

This relative module was not found:

* ./foo_pb in ./src/main.ts, ./src/FooServiceClientPb.ts

main.tsFooServiceClientPb.ts中都这样做:

import {Empty, Memory} from './foo_pb';

我可以按住Ctrl键单击./foo_pb,它会正确打开foo_pb.d.ts,因此VSCode至少知道如何打开该文件。而且所有文件都在同一目录中!为什么构建系统找不到它?

我尝试了标准删除node_modules,请了律师,上了体育馆。也是npm-check-updates -u。什么都没有。

编辑1

通过在产生错误的位添加console.log(),我又走了一点(显然,Vue不会输出实际错误,是的)。我知道了:

resolve './foo_pb' in '/home/me/myproject/src'
  using description file: /home/me/myproject/package.json (relative path: ./src)
    Field 'browser' doesn't contain a valid alias configuration
    using description file: /home/me/myproject/package.json (relative path: ./src/foo_pb)
      no extension
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb doesn't exist
      .mjs
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb.mjs doesn't exist
      .js
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb.js doesn't exist
      .jsx
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb.jsx doesn't exist
      .vue
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb.vue doesn't exist
      .json
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb.json doesn't exist
      .wasm
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb.wasm doesn't exist
      .ts
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb.ts doesn't exist
      .tsx
        Field 'browser' doesn't contain a valid alias configuration
        /home/me/myproject/src/foo_pb.tsx doesn't exist
      as directory
        /home/me/myproject/src/foo_pb doesn't exist

如果您运行vue ui并签出Inspect任务(已解析的Webpack配置),则会看到:

  resolve: {
    extensions: [
      '.mjs',
      '.js',
      '.jsx',
      '.vue',
      '.json',
      '.wasm',
      '.ts',
      '.tsx'
    ],
    ...

请注意,它缺少.d.ts。因此,我尝试通过创建具有以下内容的文件vue.config.js来添加它:

module.exports = {
  configureWebpack: {
    resolve: {
      extensions: [
        ".d.ts"
      ]
    }
  }
}

但是这也不起作用:

 ERROR  Failed to compile with 1 errors                                                                                                                                                                                                 12:36:53

 error  in ./src/foo_pb.d.ts

Module build failed (from ./node_modules/thread-loader/dist/cjs.js):
Thread Loader (Worker 0)
Debug Failure. Output generation failed
    at PoolWorker.fromErrorObj (/home/me/myproject/node_modules/thread-loader/dist/WorkerPool.js:262:12)
    at /home/me/myproject/node_modules/thread-loader/dist/WorkerPool.js:204:29
    at Object.transpileModule (/home/me/myproject/node_modules/typescript/lib/typescript.js:112341:29)
    at getTranspilationEmit (/home/me/myproject/node_modules/ts-loader/dist/index.js:283:74)
    at successLoader (/home/me/myproject/node_modules/ts-loader/dist/index.js:66:15)
    at Object.loader (/home/me/myproject/node_modules/ts-loader/dist/index.js:22:12)

1 个答案:

答案 0 :(得分:0)

好的,我认为,这只是protoc中的错误。我是这样运行的:

protoc -I=../../protos/ ../../protos/foo.proto --js_out=import_style=typescript:. --grpc-web_out=import_style=typescript,mode=grpcweb:.

这会创建foo_pb.d.ts,但它也应该 创建foo_pb.js。实际上,它为每个消息-memory.jsempty.js创建了单独的文件。我通过运行以下命令“修复”了它:

protoc -I=../../protos/ ../../protos/foo.proto --js_out=import_style=commonjs,binary:. --grpc-web_out=import_style=typescript,mode=grpcweb:.

然后生成了foo_pb.js文件,并且它还生成了foo_pb.d.ts文件。我知道吗,WTF?