GraphQL\Error\Error: Type "FieldItemTypeDatetime" not found in document. in GraphQL\Utils\BuildSchema::GraphQL\Utils\{closure}() (line 149 of /opt/vendor/webonyx/graphql-php/src/Utils/BuildSchema.php).
1. Uninstall graphql version 3.1
2. Install graphql version 4.4
3. Install graphql_core_schema version 1.0.0 beta 3
4. Created graphql server with endpoint http://localhost/graphql
6. Getting error on Explorer page.
Fixed
1.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
This is now fixed. Schema extensions can now check which GraphQL types are available and can only extend ones that are available. This solves the issue here, where the FieldItemTypeDatetime might not exist.