我从他们的 github 存储库中克隆了 thingsboard。但是当我要构建产品时,我收到了一个错误。在控制台它给了我这样的东西。
An unhandled exception occurred: Cannot read property '_options' of undefined
See "C:\Users\Asus\AppData\Local\Temp\ng-GjvaXO\angular-errors.log" for further details.
我使用“ng build --prod --vendor-chunk”来构建生产。
angular-errors.log 内部如下所示。
[error] TypeError: Cannot read property '_options' of undefined
at module.exports (C:\Users\Asus\Desktop\HomeOffice\hydroanalytica\thingsboard\ui-ngx\extra-webpack.config.js:60:58)
at Function.<anonymous> (C:\Users\Asus\Desktop\HomeOffice\hydroanalytica\thingsboard\ui-ngx\node_modules\@angular-builders\custom-webpack\dist\custom-webpack-builder.js:30:24)
at Generator.next (<anonymous>)
at C:\Users\Asus\Desktop\HomeOffice\hydroanalytica\thingsboard\ui-ngx\node_modules\@angular-builders\custom-webpack\dist\custom-webpack-builder.js:8:71
at new Promise (<anonymous>)
at __awaiter (C:\Users\Asus\Desktop\HomeOffice\hydroanalytica\thingsboard\ui-ngx\node_modules\@angular-builders\custom-webpack\dist\custom-webpack-builder.js:4:12)
at Function.buildWebpackConfig (C:\Users\Asus\Desktop\HomeOffice\hydroanalytica\thingsboard\ui-ngx\node_modules\@angular-builders\custom-webpack\dist\custom-webpack-builder.js:19:16)
at browserWebpackConfig (C:\Users\Asus\Desktop\HomeOffice\hydroanalytica\thingsboard\ui-ngx\node_modules\@angular-builders\custom-webpack\dist\common.js:17:58)
at initialize (C:\Users\Asus\Desktop\HomeOffice\hydroanalytica\thingsboard\ui-ngx\node_modules\@angular-builders\custom-webpack\node_modules\@angular-devkit\build-angular\src\browser\index.js:111:35)
at process._tickCallback (internal/process/next_tick.js:68:7)
at Function.Module.runMain (internal/modules/cjs/loader.js:832:11)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)
我不知道为什么会出现此错误。有什么解决办法吗?