Error: Schema must contain uniquely named types but contains multiple types named "RemarkHeadingLevels". #299

santoshdahal2016 · 2019-10-29T07:47:43Z

I encountered this error during running newly fetch projects.
OS: Ubuntu 18.04

carloscabral · 2019-11-24T22:56:26Z

Same here.

weaversam8 · 2019-12-07T23:08:07Z

I also encountered this issue on running gridsome develop on the gridsome.org repository.

as3k · 2019-12-16T11:38:50Z

I had the same problem earlier today. I removed node_modules and then installed with yarn instead of npm. After installing with yarn everything worked fine.

tiptronic · 2020-06-22T09:13:53Z

nope - same thing here... swapping npw with yarn didn't help

stereokai · 2020-07-20T00:08:18Z

I'm stuck with this too

TerabyteTiger · 2020-07-20T13:40:43Z

I haven't run into this on Windows 10 using PowerShell or CMD - Can someone provide additional details so it's easier to look into this?

Which Gridsome CLI Version?
Post the error message with context for source of the error
Is this happening on projects other than Gridsome.org?

Thanks!

stereokai · 2020-07-20T14:36:34Z

@TerabyteTiger I am getting this error on Mac. I also tagged you in a ~~duplicate~~ similar issue. Thank you for looking into this!

Description

Gridsome v0.7.19

Initializing plugins...
Load sources - 0s
Error: Schema must contain uniquely named types but contains multiple types named "Mutation".
    at typeMapReducer (project/node_modules/.pnpm/[email protected]/node_modules/graphql/type/schema.js:262:13)
    at Array.reduce (<anonymous>)
    at new GraphQLSchema (project/node_modules/.pnpm/[email protected]/node_modules/graphql/type/schema.js:145:28)
    at SchemaComposer.buildSchema (project/node_modules/.pnpm/[email protected][email protected]/node_modules/graphql-compose/lib/SchemaComposer.js:153:12)
    at Schema.buildSchema (project/node_modules/.pnpm/[email protected]/node_modules/gridsome/lib/app/Schema.js:35:35)
    at Plugins.createSchema (project/node_modules/.pnpm/[email protected]/node_modules/gridsome/lib/app/Plugins.js:94:22)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)

Steps to reproduce

In gridsome.config.js:

module.exports = {
  plugins: [
    {
      use: 'gridsome-source-graphql',
      options: {
        url: 'http://localhost:8888/graphql',
        fieldName: 'gqlFieldName',
        typeName: 'gqlTypeName',
      },
    },
  ],
}

url is pointing to a local GraphQL server (verified to be working correctly and consumable)

Expected result

Gridsome should consume the GraphQL properly and load the app

Actual result

Gridsome throws the error above and exits, does not start app

Environment

  System:
    OS: macOS High Sierra 10.13.6
    CPU: (8) x64 Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz
  Binaries:
    Node: 12.18.2 - ~/.nvm/versions/node/v12.18.2/bin/node
    Yarn: 1.22.4 - ~/.nvm/versions/node/v12.18.2/bin/yarn
    npm: 6.14.5 - ~/.nvm/versions/node/v12.18.2/bin/npm
  Browsers:
    Chrome: 84.0.4147.89
    Firefox: 77.0.1
    Safari: 13.1.2
  npmPackages:
    gridsome: ^0.7.0 => 0.7.19
    gridsome-source-graphql: ~1.0.2 => 1.0.2

TerabyteTiger · 2020-07-20T14:55:50Z

Thanks for the very detailed reponse @stereokai!

To possibly help narrow it down further, does this occur when using @gridsome/source-graphql? Or only with gridsome-source-graphql?

stereokai · 2020-07-20T15:01:12Z

I wasn't aware of @gridsome/source-graphql, let me try it out! :)

stereokai · 2020-07-20T15:09:01Z

@TerabyteTiger I cleared my npm cache, completely erased node_modules, and ran npm i for a fresh installation.

Now I'm getting this:

Gridsome v0.7.19

Initializing plugins...
Load sources - 0s
Error: Cannot use GraphQLList "[gqlTypeName_Log]" from another module or realm.

Ensure that there is only one instance of "graphql" in the node_modules
directory. If different versions of "graphql" are the dependencies of other
relied on modules, use "resolutions" to ensure only one version is installed.

https://yarnpkg.com/en/docs/selective-version-resolutions

Duplicate "graphql" modules cannot be used at the same time since different
versions may have different capabilities and behavior. The data from one
version used in the function from another could produce confusing and
spurious results.
    at instanceOf (project/node_modules/gridsome/node_modules/graphql/jsutils/instanceOf.js:28:13)
    at isListType (project/node_modules/gridsome/node_modules/graphql/type/definition.js:181:34)
    at isWrappingType (project/node_modules/gridsome/node_modules/graphql/type/definition.js:364:10)
    at getNamedType (project/node_modules/gridsome/node_modules/graphql/type/definition.js:423:12)
    at typeMapReducer (project/node_modules/gridsome/node_modules/graphql/type/schema.js:257:48)
    at typeMapReducer (project/node_modules/gridsome/node_modules/graphql/type/schema.js:286:20)
    at typeMapReducer (project/node_modules/gridsome/node_modules/graphql/type/schema.js:286:20)
    at Array.reduce (<anonymous>)
    at new GraphQLSchema (project/node_modules/gridsome/node_modules/graphql/type/schema.js:145:28)
    at NamespaceUnderFieldTransform.transformSchema (project/node_modules/@gridsome/source-graphql/transforms.js:57:12)
    at project/node_modules/graphql-tools/dist/transforms/transforms.js:11:54
    at Array.reduce (<anonymous>)
    at Object.applySchemaTransforms (project/node_modules/graphql-tools/dist/transforms/transforms.js:10:23)
    at transformSchema (project/node_modules/graphql-tools/dist/transforms/transformSchema.js:17:27)
    at GraphQLSource.namespaceSchema (project/node_modules/@gridsome/source-graphql/index.js:72:12)
    at project/node_modules/@gridsome/source-graphql/index.js:50:43

This is my package.json:

{
  "name": "project",
  "private": true,
  "scripts": {
    "build": "gridsome build",
    "develop": "gridsome develop",
    "explore": "gridsome explore"
  },
  "dependencies": {
    "@gridsome/source-graphql": "~0.1.0",
    "gridsome": "^0.7.0"
  }
}

TerabyteTiger · 2020-07-20T15:19:57Z

That seems super weird - does this happen to be a public repo?

stereokai · 2020-07-20T15:27:06Z

It's a brand new project I just started yesterday, all the project has is just this configuration

TerabyteTiger · 2020-07-20T17:17:18Z

This is super weird. I have both packages working without issue - Windows 10, PowerShell.

I started with the @gridsome package, then cleared everything out and installed gridsome-source-graphql.

These were my files -

`@gridsome/source-graphql`

// gridsome.config.js

module.exports = {
  siteName: "Gridsome",
  plugins: [
    {
      use: "@gridsome/source-graphql",
      options: {
        url: "https://rickandmortyapi.com/graphql/",
        fieldName: "rickandmorty",
        typeName: "RAM",
      },
    },
  ],
};

query {
   rickandmorty{
    characters {
      results {
        name
      }
    }
  }
}

// Package.json

{
  "name": "ql-test",
  "private": true,
  "scripts": {
    "build": "gridsome build",
    "develop": "gridsome develop",
    "explore": "gridsome explore"
  },
  "dependencies": {
    "@gridsome/source-graphql": "^0.1.0",
    "gridsome": "^0.7.0"
  }
}

`gridsome-source-graphql`

// gridsome.config.js

module.exports = {
  siteName: "Gridsome",
  plugins: [
    {
      use: "gridsome-source-graphql",
      options: {
        url: "https://rickandmortyapi.com/graphql/",
        fieldName: "rickandmorty",
        typeName: "RAM",
      },
    },
  ],
};

query {
   characters {
    results {
      name
    }
  }
}

// Package.json

{
  "name": "ql-test",
  "private": true,
  "scripts": {
    "build": "gridsome build",
    "develop": "gridsome develop",
    "explore": "gridsome explore"
  },
  "dependencies": {
    "gridsome": "^0.7.0",
    "gridsome-source-graphql": "^1.0.2"
  }
}

The only thing that stands out with your project @stereokai is that your graphQL is also on localhost - but I really don't think that's the cause of the issue.

Maybe someone with a Bash terminal can check if these files work for them?

stereokai · 2020-07-20T18:53:04Z

Thanks a lot of all of this!!!

I tried both options. Using your settings, I'm now getting this:

Initializing plugins...
Load sources - 0s
Error: Cannot use GraphQLObjectType "RAM_Character" from another module or realm.

Ensure that there is only one instance of "graphql" in the node_modules
directory. If different versions of "graphql" are the dependencies of other
relied on modules, use "resolutions" to ensure only one version is installed.

https://yarnpkg.com/en/docs/selective-version-resolutions

Duplicate "graphql" modules cannot be used at the same time since different
versions may have different capabilities and behavior. The data from one
version used in the function from another could produce confusing and
spurious results.

jackoconnor21 · 2020-12-16T17:04:34Z

Has anybody been able to figure this out? I'm using AWS Amplify (AppSync GraphQL) with Gridsome and i'm getting the same issue.
Schema must contain uniquely named types but contains multiple types named "Mutation"

I would really appreciate any help here.

mtlynch added the bug Something isn't working label Jun 7, 2020

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Error: Schema must contain uniquely named types but contains multiple types named "RemarkHeadingLevels". #299

Error: Schema must contain uniquely named types but contains multiple types named "RemarkHeadingLevels". #299

santoshdahal2016 commented Oct 29, 2019

carloscabral commented Nov 24, 2019

weaversam8 commented Dec 7, 2019

as3k commented Dec 16, 2019

tiptronic commented Jun 22, 2020

stereokai commented Jul 20, 2020

TerabyteTiger commented Jul 20, 2020

stereokai commented Jul 20, 2020

TerabyteTiger commented Jul 20, 2020

stereokai commented Jul 20, 2020

stereokai commented Jul 20, 2020

TerabyteTiger commented Jul 20, 2020

stereokai commented Jul 20, 2020

TerabyteTiger commented Jul 20, 2020

stereokai commented Jul 20, 2020 •

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jackoconnor21 commented Dec 16, 2020 •

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Error: Schema must contain uniquely named types but contains multiple types named "RemarkHeadingLevels". #299

Error: Schema must contain uniquely named types but contains multiple types named "RemarkHeadingLevels". #299

Comments

santoshdahal2016 commented Oct 29, 2019

carloscabral commented Nov 24, 2019

weaversam8 commented Dec 7, 2019

as3k commented Dec 16, 2019

tiptronic commented Jun 22, 2020

stereokai commented Jul 20, 2020

TerabyteTiger commented Jul 20, 2020

stereokai commented Jul 20, 2020

Description

Steps to reproduce

Expected result

Actual result

Environment

TerabyteTiger commented Jul 20, 2020

stereokai commented Jul 20, 2020

stereokai commented Jul 20, 2020

TerabyteTiger commented Jul 20, 2020

stereokai commented Jul 20, 2020

TerabyteTiger commented Jul 20, 2020

@gridsome/source-graphql

gridsome-source-graphql

stereokai commented Jul 20, 2020 • edited Loading

jackoconnor21 commented Dec 16, 2020 • edited Loading

`@gridsome/source-graphql`

`gridsome-source-graphql`

stereokai commented Jul 20, 2020 •

edited

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jackoconnor21 commented Dec 16, 2020 •

edited

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