問題描述：

在微信小程式中自定義元件時，編譯報Component is not found in path '...'

VM4941:1 jsEnginScriptError
Component is not found in path "components/watermark/watermark" (using by "pages/login/login")
Error: Component is not found in path "components/watermark/watermark" (using by "pages/login/login")
    at e (http
 
://127.0.0.1:48631/appservice/__dev__/WAService.js:13:26480)
    at e (http://127.0.0.1:48631/appservice/__dev__/WAService.js:13:26632)
    at W (http://127.0.0.1:48631/appservice/__dev__/WAService.js:14:749)
    at Object.t.addView (http://127.0.0.1:48631/appservice/__dev__/WAService.js:14:1759)
    at Function.value (http://127.0
 
.0.1:48631/appservice/__dev__/WAService.js:15:25997)
    at j (http://127.0.0.1:48631/appservice/__dev__/WAService.js:15:4246)
    at U (http://127.0.0.1:48631/appservice/__dev__/WAService.js:15:6628)
    at G (http://127.0.0.1:48631/appservice/__dev__/WAService.js:15:6894)
    at Function.<anonymous> (http://127.0.0.1:48631
 
/appservice/__dev__/WAService.js:15:9282)
    at http://127.0.0.1:48631/appservice/__dev__/WAService.js:15:14950

解決方法：

確認自定義的元件的js檔案是否存在Component構造器

Component({

});

確保要引入的頁面的json檔案中的usingComponents的path是正確的：

檔案路徑：

這裡的路路徑有兩種寫法：

{
    "usingComponents": {
        "watermark" : "/components/watermark/watermark"
    }
}

{
  "usingComponents": {
    "watermark": "../../components/watermark/watermark"
  }
}