gulp build error

[djsg]

OS: Windows 10
npm --version: 5.6.0
node --version: v8.11.3

error:
[14:14:55] Failed to load external module @babel/register
[14:14:55] Requiring external module babel-register

med3web\node_modules\babel-core\lib\transformation\file\options\option-manager.js:180
throw new ReferenceError(messages.get("pluginUnknown", plugin, loc, i, dirname));
^
ReferenceError: Unknown plugin "syntax-dynamic-import" specified in "D:\dajiang\projects\FitPU\Code\Med3Web\med3web\.babelrc" at 0, attempted to resolve relative to "D:\dajiang\projects\FitPU\Code\Med3Web\med3web"
at D:\dajiang\projects\FitPU\Code\Med3Web\med3web\node_modules\babel-core\lib\transformation\file\options\option-manager.js:180:17
at Array.map ()
at Function.normalisePlugins (D:\dajiang\projects\FitPU\Code\Med3Web\med3web\node_modules\babel-core\lib\transformation\file\options\option-manager.js:158:20)
at OptionManager.mergeOptions (D:\dajiang\projects\FitPU\Code\Med3Web\med3web\node_modules\babel-core\lib\transformation\file\options\option-manager.js:234:36)
at OptionManager.init (D:\dajiang\projects\FitPU\Code\Med3Web\med3web\node_modules\babel-core\lib\transformation\file\options\option-manager.js:368:12)
at compile (D:\dajiang\projects\FitPU\Code\Med3Web\med3web\node_modules\babel-register\lib\node.js:103:45)
at loader (D:\dajiang\projects\FitPU\Code\Med3Web\med3web\node_modules\babel-register\lib\node.js:144:14)
at Object.require.extensions.(anonymous function) [as .js] (D:\dajiang\projects\FitPU\Code\Med3Web\med3web\node_modules\babel-register\lib\node.js:154:7)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)

[VladislavShubnikov]

fixed with prev commit c11c631: modify .babelsrc file. Removed unused plugins