I tried to setup PrimeFlex (3.0.1) for PrimeFaces (10.0.0). I used css files as provided in dist folder of PrimeFlex repo. Also I followed the instructions give
ros2
nana
smtp
nsdatecomponentsformatter
aec
nstoolbaritem
textctrl
euclidean-distance
nullsafe
asp.net-blazor
confluence
pynini
qvalidator
crc64
photography
spring-social-twitter
bogus
string-view
jquery-ui-tooltip
struct
.data
temporary-files
android-design-library
color-mapping
styleddocument
javafx-8
quickblox-android
unspecified
vis.js
container-registry