[graphql-language-service]: TypeError [ERR_INVALID_ARG_TYPE]: The "chunk" argument must be one of type string or Buffer. Received type object

graph-language-service doesn’t return an error message that shows what you need to do.

how to reproduce

Run one of the following commands in the root of package graphql-language-service, then you got the same error message as the title. bin/graphql.js autocomplete --text foo --schemaPath ... bin/graphql.js outline --text foo bin/graphql.js validate --text foo --schemaPath ... (Before running these scripts, you need to run yarn build in advance.)

cause

error given at https://github.com/graphql/graphiql/blob/917c3931634cf27eb31a0383ff7c15ffd902d221/packages/graphql-language-service/src/client.ts#L105 or https://github.com/graphql/graphiql/blob/917c3931634cf27eb31a0383ff7c15ffd902d221/packages/graphql-language-service/src/client.ts#L134 or https://github.com/graphql/graphiql/blob/917c3931634cf27eb31a0383ff7c15ffd902d221/packages/graphql-language-service/src/client.ts#L148 is actually type object, though process.stderr.write method doesn’t allow for type object. Therefore, the method throws an error.

[acao]

i’ll get a chance to take a closer look next week probably

[yoshiakis]

@acao Although this issue looks similar to #1306, it seems the cause of this issue is different from the cause of #1306.