Angular CLI 升级 6.0 之后遇到的问题

95% emitting LicenseWebpackPlugin(node:6252) UnhandledPromiseRejectionWarning: Error: ENOENT: no such file or directory, open 'D:\X\project\Angular-examples\angular-test\node_modules\_@angular_common@6.0.2@@angular\package.json'
    at Object.fs.openSync (fs.js:646:18)
    at Object.fs.readFileSync (fs.js:551:33)
    at LicenseExtractor.readPackageJson (D:\X\project\Angular-examples\angular-test\node_modules\_license-webpack-plugin@1.3.1@license-webpack-plugin\dist\LicenseExtractor.js:126:23)
    at LicenseExtractor.parsePackage (D:\X\project\Angular-examples\angular-test\node_modules\_license-webpack-plugin@1.3.1@license-webpack-plugin\dist\LicenseExtractor.js:23:32)
    at ModuleProcessor.processPackage (D:\X\project\Angular-examples\angular-test\node_modules\_license-webpack-plugin@1.3.1@license-webpack-plugin\dist\ModuleProcessor.js:39:46)
    at ModuleProcessor.processFile (D:\X\project\Angular-examples\angular-test\node_modules\_license-webpack-plugin@1.3.1@license-webpack-plugin\dist\ModuleProcessor.js:36:21)
    at fileCallback (D:\X\project\Angular-examples\angular-test\node_modules\_license-webpack-plugin@1.3.1@license-webpack-plugin\dist\LicenseWebpackPlugin.js:101:61)
    at moduleCallback (D:\X\project\Angular-examples\angular-test\node_modules\_license-webpack-plugin@1.3.1@license-webpack-plugin\dist\LicenseWebpackPlugin.js:108:21)
    at D:\X\project\Angular-examples\angular-test\node_modules\_license-webpack-plugin@1.3.1@license-webpack-plugin\dist\LicenseWebpackPlugin.js:120:29
    at Array.forEach (<anonymous>)
    at emitCallback (D:\X\project\Angular-examples\angular-test\node_modules\_license-webpack-plugin@1.3.1@license-webpack-plugin\dist\LicenseWebpackPlugin.js:86:32)
    at _err0 (eval at create (D:\X\project\Angular-examples\angular-test\node_modules\_tapable@1.0.0@tapable\lib\HookCodeFactory.js:24:12), <anonymous>:19:1)
    at callback (D:\X\project\Angular-examples\angular-test\node_modules\_copy-webpack-plugin@4.5.1@copy-webpack-plugin\dist\index.js:77:17)
    at D:\X\project\Angular-examples\angular-test\node_modules\_copy-webpack-plugin@4.5.1@copy-webpack-plugin\dist\index.js:118:24
    at <anonymous>
(node:6252) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:6252) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.