# Connectors spec v0.3 deployment issues

**URL:** <https://community.apollographql.com/t/connectors-spec-v0-3-deployment-issues/9514>\
**Category:** Connectors\
**Tags:** federation, studio, connectors, graphos\
**Created:** [October 19, 2025, 1:15am UTC](https://community.apollographql.com/t/connectors-spec-v0-3-deployment-issues/9514 "2025-10-19T01:15:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![\_Up](https://sea1.discourse-cdn.com/flex019/user_avatar/community.apollographql.com/_up/32/6396_2.png) [@\_Up](https://community.apollographql.com/u/_Up)\
**Post date:** [October 19, 2025, 1:15am UTC](https://community.apollographql.com/t/connectors-spec-v0-3-deployment-issues/9514/1 "2025-10-19T01:15:44Z")

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Hello, I am trying to deploy a connectors subgraph that uses the connect v0.3 spec, which is currently in preview.  
(My queries have optional query parameters for filtering, which I was told on discord _requires_ using the 0.3 preview of the connect spec.)

This works fine in local development using `rover dev`, however since switching my graphOS federation version to the 2.12 preview, I am unable to deploy my updated subgraphs.  
In the launch dashboard I get the following error message:

`Build exceeded maximum attempts. Please try again and contact Apollo support if this continues.`

And on the github action run that started the deployment I am simply getting a failure with no further information:  
`error[E031]: error sending request for url (`[`https://api.apollographql.com/graphql`](https://api.apollographql.com/graphql)`)`

Any help would be appreciated.

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**Author:** ![lennyburdette](https://sea1.discourse-cdn.com/flex019/user_avatar/community.apollographql.com/lennyburdette/32/84_2.png) [@lennyburdette](https://community.apollographql.com/u/lennyburdette)\
**Post date:** [October 21, 2025, 2:46pm UTC](https://community.apollographql.com/t/connectors-spec-v0-3-deployment-issues/9514/2 "2025-10-21T14:46:16Z")

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Hi, sorry you’re running into trouble here. Two things:

- optional query parameters landed in Federation 2.11 / Connect 0.2, so you shouldn’t need the preview for what you’re trying to do
- would you be able to share your graph id and variant with me over email so we can dig into this? i’m lenny at apollographql dot com.

thanks!