Han Mai

Same issue on version 0.3.4. Build production failed! ```bash ERROR in ./node_modules/ng-multiselect-dropdown/fesm5/ng-multiselect-dropdown.js Module build failed (from ./node_modules/@angular-devkit/build-optimizer/src/build-optimizer/webpack-loader.js): TypeError: Cannot read property 'kind' of undefined at isAngularDecoratorMetadataExpression (C:\Users\han.mai\Desktop\work\my_project_name\node_modules\@angular-devkit\build-optimizer\src\transforms\scrub-file.js:242:35) at checkNodeForDecorators (C:\Users\han.mai\Desktop\work\my_project_name\node_modules\@angular-devkit\build-optimizer\src\transforms\scrub-file.js:67:21)...