"export 'DOCUMENT' was not found in '@angular/platform-browser'

Question

Happened while trying to upgrade IONIC app from version 3 to 4

Updated all plugins and modules to latest available, without any luck.

ERROR in ./node         


        

Answer 1

I faced this issue while migrating to angular 8.x.x .

Actually 'DOCUMENT' has been deprecated from '@angular/platform-browser' and is now part of '@angular/common'.

Older plugins still try to import document from '@angular/platform-browser' . Just check in the .js and .js.map files under 'fesm5' as well as 'fesm2015' folder of the plugin in node_modules section.

Better to update the specific plugin to latest angular compatible version.

In my case troubling plugin was 'ngx-clipboard'.