ng build --watch 删除dist里面的项目目录

Question

我的应用程序有两个库：

contact-us

和

about-us

。

Contact-us

完美链接到我的应用程序，但是当我使用相同的方法链接

about-us

时，我得到了一些错误！.

我为链接所做的工作

about-us

：

cd libraries/about-us/
npm run build
cd /dist/about-us
npm link
ng build --watch

ng build --watch

之后我得到了什么（请注意第1、2和3点！）：

Building Angular Package

------------------------------------------------------------------------------
Building entry point 'about-us'
------------------------------------------------------------------------------
// Point 1. this error is also shown for contact-us, but doesn't make problem
⠋ Compiling with Angular sources in Ivy partial compilation mode.internal/bootstrap/switches/does_own_process_state.js:130
    cachedCwd = rawMethods.cwd();
                           ^

Error: ENOENT: no such file or directory, uv_cwd
    at process.wrappedCwd [as cwd] (internal/bootstrap/switches/does_own_process_state.js:130:28)
    at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:872:42)
    at Loader.resolve (internal/modules/esm/loader.js:89:40)
    at Loader.getModuleJob (internal/modules/esm/loader.js:242:28)
    at Loader.import (internal/modules/esm/loader.js:177:28)
    at internal/modules/run_main.js:52:28
    at Object.loadESM (internal/process/esm_loader.js:68:11)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
    at async handleMainPromise (internal/modules/run_main.js:59:12) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'uv_cwd'
}

//point 2. this error is not shown for contact-us.
//point 3. if I interrupt the command in this point, I can still see files in dist/about-us/
events.js:377
      throw er; // Unhandled 'error' event
      ^
Error: ENOENT: no such file or directory, uv_cwd
    at process.cwd (internal/main/worker_thread.js:149:19)
    at MessagePort.<anonymous> (internal/main/worker_thread.js:163:48)
    at MessagePort.[nodejs.internal.kHybridDispatch] (internal/event_target.js:399:24)
    at MessagePort.exports.emitMessage (internal/per_context/messageport.js:18:26)
Emitted 'error' event on process instance at:
    at emitUnhandledRejectionOrErr (internal/event_target.js:579:11)
    at MessagePort.[nodejs.internal.kHybridDispatch] (internal/event_target.js:403:9)
    at MessagePort.exports.emitMessage (internal/per_context/messageport.js:18:26)
    at Worker.[kOnExit] (internal/worker.js:271:5)
    at Worker.<computed>.onexit (internal/worker.js:203:20) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'uv_cwd'
}

我注意到，在此之后，

dist

目录变空了，其中的项目文件夹被删除了！我认为这就是

ENOENT

错误的原因。

经过一番搜索，我发现here

ng build --watch

寻找

dist

目录，所以我不在

about-us/dist/about-us

中运行它，而是在根

about-us

中运行它。 然后我没有得到任何错误

ng build --watch

.

但是，当我在我的应用程序目录中运行时：

npm link about-us
ionic cap build android

我的应用找不到图书馆，我得到：

cannot find module 'about-us' or its corresponding type declarations.
29     loadChildren: () => import('about-us').then(m => m.AboutusModule)
                                  ~~~~~~~~~~~~~~~~
[ERROR] An error occurred while running subprocess ng.
        ng run app:build exited with exit code 1.

此外，当我检查我的应用程序的

node_modules

目录时，我可以看到为

about-us

创建的链接与

contact-us

的链接不同。

所以我想我必须明白为什么

ng build --watch

没有按预期工作！ 有谁知道问题出在哪里以及我该如何解决？提前谢谢你！

一些信息： 我正在使用 nvm14.20 和 cli 14.0.1.

Answer 1

我发现了问题所在。是的

ng build --watch

寻找

dist

目录，所以不应该在

dist

内运行，但是

npm link

必须在

dist\about-us

中运行所以解决方案是：

npm run build
cd /dist/about-us
npm link  
cd ../..
ng build --watch