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Error: Cannot create as TypeComposer the following value: Date.

See original GitHub issue

Description

While running ‘gatsby develop’ everything works till graphql schema is going to be built. Then it throws error.

ERROR 

UNHANDLED REJECTION Cannot create as TypeComposer the following value: Date.



 Error: Cannot create as TypeComposer the following value: Date.
 
 - SchemaComposer.js:365 SchemaComposer.createTempTC
   [store]/[graphql-compose]/lib/SchemaComposer.js:365:11
 
 - SchemaComposer.js:563 SchemaComposer.addAsComposer
   [store]/[graphql-compose]/lib/SchemaComposer.js:563:27
 
 - schema-composer.js:35 createSchemaComposer
   [store]/[gatsby]/dist/schema/schema-composer.js:35:18
 
 - index.js:135 Object.build
   [store]/[gatsby]/dist/schema/index.js:135:26
 
 - index.js:419 async module.exports
   [store]/[gatsby]/dist/bootstrap/index.js:419:3
 
 - develop.js:429 async module.exports
   [store]/[gatsby]/dist/commands/develop.js:429:7
 
not finished building schema - 0.172s

Steps to reproduce

Everything worked well until I installed Apollo dependencies and plugin

Expected result

Error shouldn’t appear and app should work

Actual result

Error when building graphql schema

Environment

  System:
    OS: macOS 10.15.4
    CPU: (4) x64 Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
    Shell: 3.2.57 - /bin/bash
  Binaries:
    Node: 13.12.0 - ~/.nvm/versions/node/v13.12.0/bin/node
    Yarn: 1.22.4 - ~/.nvm/versions/node/v13.12.0/bin/yarn
    npm: 6.14.4 - ~/.nvm/versions/node/v13.12.0/bin/npm
  Languages:
    Python: 2.7.16 - /usr/bin/python
  Browsers:
    Chrome: 80.0.3987.163
    Firefox: 74.0.1
    Safari: 13.1
  npmPackages:
    gatsby: ^2.20.12 => 2.20.18
    gatsby-cli: ^2.11.7 => 2.11.7
    gatsby-image: ^2.3.1 => 2.3.2
    gatsby-plugin-apollo: ^3.0.1 => 3.0.1
    gatsby-plugin-manifest: ^2.3.3 => 2.3.3
    gatsby-plugin-offline: ^3.1.2 => 3.1.2
    gatsby-plugin-react-helmet: ^3.2.1 => 3.2.2
    gatsby-plugin-sharp: ^2.5.3 => 2.5.4
    gatsby-plugin-styled-components: ^3.2.1 => 3.2.1
    gatsby-source-filesystem: ^2.2.2 => 2.2.2
    gatsby-source-graphql: ^2.3.2 => 2.3.2
    gatsby-source-shopify: ^3.1.2 => 3.1.2
    gatsby-theme-apollo: ^3.0.2 => 3.0.2
    gatsby-transformer-sharp: ^2.4.3 => 2.4.4
  npmGlobalPackages:
    gatsby-cli: 2.11.7
    gatsby-starter-default: 0.1.0

Issue Analytics

State:
Created 3 years ago
Reactions:3
Comments:11 (3 by maintainers)

Top GitHub Comments

4reactions

jack0wskycommented, May 13, 2020

For those who will face this issue, I found out that you simply need to install older version of GraphQL. In my case, I had to install graphql@^14.6.0 instead of 15.0.0 version.

3reactions

pfftdammitchriscommented, Jul 19, 2020

I think the issue was having a different graphql version installed. I had graphql installed in dependencies, uninstalled it, was having the error still, then npm install gatsby and it worked.

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