I've just created an angular 2 project via angular-cli. Then I added Bootstrap v4 using command npm install [email protected] provided by Bootstrap official site.
Anyway, everything works except for the following error in console window :
Uncaught Error: Bootstrap dropdown require Popper.js (https://popper.js.org)
at scripts.bundle.js:179
at scripts.bundle.js:588
I've installed popper.js and added inside .angular-cli.json :
"scripts": [
"../node_modules/jquery/dist/jquery.slim.min.js",
"../node_modules/tether/dist/js/tether.min.js",
"../node_modules/popper.js/dist/umd/popper.js",
"../node_modules/bootstrap/dist/js/bootstrap.min.js"
],
But still the error is there!