I created a new controller with a new route. I dump generate my new fos_js-routes.json with this command : php bin/console fos:js-routing:dump My new json was
android-appshortcut
tomcat-dbcp
printdocument
watson-conversation
particle-swarm
data-ingestion
inode
postgresql-9.6
kubernetes-psp
pyomo
marathon
in-app-subscription
iperf
passport.js
account-management
bindservice
integration-patterns
sendasync
pim
huawei-account
offloading
c++-templates
es5-shim
kbhit
overlay
actioncontroller
shinywidgets
spring-cloud-function
auto-update
undeclared-identifier