Compatibility with WPGraphQL 2.1+

[rodrigorenault]

Hi everyone,

After updating to WPGraphQL 2.1.1, I can no longer query forms using GraphQL. Every attempt results in the following error:

{
  "errors": [
    {
      "message": "Internal server error",
      "extensions": {
        "debugMessage": "GraphQL\\Type\\Schema::getImplementations(): Return value must be of type GraphQL\\Utils\\InterfaceImplementations, null returned"
      }
    }
  ]
}

It looks like the plugin is currently incompatible with WPGraphQL versions 2.1 and above, likely due to internal changes in the schema handling.

Is there any update on when a compatible version of the Gravity Forms GraphQL plugin will be released? We're currently blocked from using this in production and staging environments.

Thanks in advance for any insight!

[justlevine]

Thanks for flagging this @rodrigorenault . This definitely sounds like an incompatibility bug, though I'm not sure why I havn't seen any failing builds yet myself.

Would you be able to open up a Bug Report with the requisite template info: replication steps (e.g. the graphql query, and example form export), the trace from that debugMessage or your WP_DEBUG_LOG file, and your Site Health info (php version, plugin versions, etc)

I should be able to carve out some time for this over the weekend, and the faster I can replicate means the faster I can ship a fix.

[justlevine]

I was able to replicate this with GF 2.9.7 + WPGraphQL 2.3.0 using a ProductField interface:

wp-graphql/wp-graphql#3341 (comment)

[rrenault-farber]

Thanks for the update, @justlevine.

Since this appears to be related to internal changes in WPGraphQL itself, we’ll follow the issue on the WPGraphQL project. We're also using WPGraphQL for ACF, so keeping compatibility across all extensions is essential for our setup.

Appreciate your help replicating the issue, looking forward to the fix!

Best,