（404未找到）正在加载http：// localhost：4200 / angular2-datatable / datatable

像这样-在您的systemjs.config.js中更新angular2-datatable-

// map tells the System loader where to look for things
var map = {
    'src':                        'build', // 'dist',
    'rxjs':                       'node_modules/rxjs',
    '@angular':                   'node_modules/@angular',
    'angular2-datatable':         'node_modules/angular2-datatable',
    'lodash':                     'node_modules/lodash/lodash.js',
};

// packages tells the System loader how to load when no filename and/or no extension
var packages = {
    'src':                        { main: 'main.js',  defaultExtension: 'js' },
    'rxjs':                       { defaultExtension: 'js' },
    'angular2-datatable':         { defaultExtension: 'js' },
    'lodash':                     { defaultExtension: 'js' },
};

看看是否有帮助。