"Could not parse partial schema as AST."
Ran into this when using rover to parse a graphql schema that had a syntax error. The issue was caused by double quotes in a graphql comment, something allowed by the framework I was using to render the schema (DGS).
"""Placing quotes around "strings" in graphql comments causes this error"""" # INVALID
The fix is to remove or replace the double quotes, e.g.
"""Placing quotes around 'strings' in graphql comments causes this error"""" # VALID
Thank you! Just ran into this error and finding this saved me a bunch of debugging time. 👏 💯