# Trying to run graphQL router locally and it is giving error

**URL:** <https://community.apollographql.com/t/trying-to-run-graphql-router-locally-and-it-is-giving-error/7970>\
**Category:** Router\
**Tags:** router\
**Created:** [December 3, 2024, 6:30pm UTC](https://community.apollographql.com/t/trying-to-run-graphql-router-locally-and-it-is-giving-error/7970 "2024-12-03T18:30:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Shishir\_Shah](https://sea1.discourse-cdn.com/flex019/user_avatar/community.apollographql.com/shishir_shah/32/5390_2.png) [@Shishir\_Shah](https://community.apollographql.com/u/Shishir_Shah)\
**Post date:** [December 3, 2024, 6:30pm UTC](https://community.apollographql.com/t/trying-to-run-graphql-router-locally-and-it-is-giving-error/7970/1 "2024-12-03T18:30:41Z")

</div>

Hello All,

I am using Windows system and I am trying to run a router with super graph and router configuration with the help of rover dev but it is not working and giving me following error:

rover dev --supergraph-config supergraph.yaml --router-config router.yaml

composing supergraph with Federation v2.7.1  
ERROR: Failed to read configuration: could not deserialize configuration: data did not match any variant of untagged enum ListenAddr  
ERROR: no valid configuration was supplied  
ERROR: no valid configuration was supplied

I am setting API KEY and GRAPH REF and I did verify those are correct with help of other teams who are able to run it successfully.

My subgraph is developed using spring boot and netflix DGS and it is running locally. However when I try to communicate to it using router it give me an error saying can not start router.

Appreciate any help!