ionic cordova build android --prod --release
[14:55:06] preprocess finished in 20.40 s
[14:55:06] webpack started ...
[14:56:51] webpack finished in 105.09 s
[14:56:51] sass started ...
[14:56:51] uglifyjs started ...
Error: Unexpected token: name (ProfileFacebookPageModuleInjector) in C:\Users\2bher\WebstormProjects\ionic3-angular4_2\www\build\0.main.js at line 46, col 6, pos 2589
at BuildError.Error (native)
at new BuildError (C:\Users\2bher\WebstormProjects\ionic3-angular4_2\node_modules\@ionic\app-scripts\dist\util\errors.js:16:28)
at taskReject (C:\Users\2bher\WebstormProjects\ionic3-angular4_2\node_modules\@ionic\app-scripts\dist\worker-process.js:36:22)
at C:\Users\2bher\WebstormProjects\ionic3-angular4_2\node_modules\@ionic\app-scripts\dist\worker-process.js:14:13
at process._tickCallback (internal/process/next_tick.js:109:7)
[14:56:55] sass finished in 3.19 s
[14:56:55] cleancss started ...
[14:56:57] cleancss finished in 2.81 s
found this - https://github.com/ionic-team/ionic-app-scripts/issues/1027
looking for solution.