Hi
I get the same error reported here
https://stackoverflow.com/questions/46952775/bootstrap-4-uncaught-referenceerror-popper-is-not-defined
bootstrap's version is 4.0.0 beta 2
popper's version is 1.12.6
I use them on wordpress 4.8.2 with chromium 62.0.3202.75 on Arch Linux 64bit (I'm testing it on my local server on debian 9)

I report here another small problem that I see from its web toolkit
"invalid proporty value" if I select the "a" tag
-webkit-text-decoration-skip: objects;
a {
color: #007bff;
text-decoration: none;
background-color: transparent;
-webkit-text-decoration-skip: objects;
}
from _reboot.scss on line 199

thanks
bye
Popper.js should be included before bootstrap not after 馃槈
About the invalid that's because your browser don't need this CSS rule but they are users which will need that
Hi
thanks
changing the order now it is ok
bye
I am getting same issue.
Please check my link-
http://devstheme.net/
give solution.
ReferenceError: Popper is not defined
After changing order I am getting this error..
SyntaxError: export declarations may only appear at top level of a module
popper.min.js:4:17879
ReferenceError: Popper is not defined
[Learn More]
bootstrap.js:3849:1
That's because you didn't choose the UMD release of Popper.js @NazreAlam
@shmakovpn so where do you paste the info in the file you provided?? I'm new a JS and attempting to create a basic app (my first one!), I'm very early into the project and I CANNOT seem to get my JS to work because of this undefined..popper bullshit. I have the script in the correct order. I downloaded it properly and am using local storage... yet I keep getting this error. Please help. Thanks!
@PCMS88 templates/base.html
You need it
before that
You can find popper.js and my base.html in github.com/shmakovpn/jobex
Most helpful comment
Popper.js should be included before bootstrap not after 馃槈
About the invalid that's because your browser don't need this CSS rule but they are users which will need that