Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

v8 error: Cannot read property 'type' of undefined

See original GitHub issue

Getting the following error after upgrading to v8.0.2. Not sure if I should have migrated something somehow?

$ $(yarn bin)/gql-gen -u http://localhost:3000/graphql -t typescript -o src/app/data/schema.ts "src/**/*.{queries,fragments}.ts"
Loading GraphQL Introspection from remote: http://localhost:3000/graphql...
TypeError: Cannot read property 'type' of undefined
    at /home/simon/dev/plotist/plotist-ng/node_modules/graphql-codegen-core/dist/operations/build-selection-set.js:37:64
    at Array.map (native)
    at Object.buildSelectionSet (/home/simon/dev/plotist/plotist-ng/node_modules/graphql-codegen-core/dist/operations/build-selection-set.js:31:61)
    at Object.transformFragment (/home/simon/dev/plotist/plotist-ng/node_modules/graphql-codegen-core/dist/operations/transform-fragment-document.js:17:45)
    at /home/simon/dev/plotist/plotist-ng/node_modules/graphql-codegen-core/dist/operations/transform-document.js:21:65
    at Array.forEach (native)
    at transformDocument (/home/simon/dev/plotist/plotist-ng/node_modules/graphql-codegen-core/dist/operations/transform-document.js:16:17)
    at Object.<anonymous> (/home/simon/dev/plotist/plotist-ng/node_modules/graphql-code-generator/dist/cli.js:138:43)
    at step (/home/simon/dev/plotist/plotist-ng/node_modules/graphql-code-generator/dist/cli.js:32:23)
    at Object.next (/home/simon/dev/plotist/plotist-ng/node_modules/graphql-code-generator/dist/cli.js:13:53)

Issue Analytics

State:
Created 6 years ago
Comments:15 (15 by maintainers)

Top GitHub Comments

1reaction

dotansimhacommented, Jul 18, 2017

@altschuler yeah that is my goal for the next days - just want to make sure that we don’t have any other surprises like these issues 😃

Thank you so much for your review and help in fixing these issues!

0reactions

altschulercommented, Jul 18, 2017

Awesome, it works! The default emit templates (at least for typescript) are quite different than in 0.7, eg. ElementsQuery.Result is now emitted as Elements.Query so you might want to bump a major version?