Subscriptions-transport-ws: Cannot use GraphQLSchema [object Object] from another module or realm.

Created on 7 May 2018 · 7Comments · Source: apollographql/subscriptions-transport-ws

I'm trying to get this package working with graphiql, but with a simple example I get this error:

{"type":"error","id":"1","payload":{"message":"Cannot use GraphQLSchema \"[object Object]\" from another module or realm.\n\nEnsure that there is only one instance of \"graphql\" in the node_modules\ndirectory. If different versions of \"graphql\" are the dependencies of other\nrelied on modules, use \"resolutions\" to ensure only one version is installed.\n\nhttps://yarnpkg.com/en/docs/selective-version-resolutions\n\nDuplicate \"graphql\" modules cannot be used at the same time since different\nversions may have different capabilities and behavior. The data from one\nversion used in the function from another could produce confusing and\nspurious results."}}

Packages used:

"dependencies": {
    "apollo-server-express": "^1.3.6",
    "body-parser": "^1.18.2",
    "cors": "^2.8.4",
    "dotenv": "^5.0.1",
    "express": "^4.16.3",
    "graphql": "^0.13.2",
    "graphql-tools": "^3.0.0",
    "graphql-type-json": "^0.2.1",
    "mongodb": "^3.0.7",
    "mongoose": "^5.0.16",
    "promise-retry": "^1.1.1",
    "web3": "^1.0.0-beta.34"
  },

I've tried this to no avail either:
https://github.com/graphcool/graphql-yoga/issues/162#issuecomment-367368045

Source

elie222

👍5

Most helpful comment

i have the same error and "npm ls | grep graphql" did not show any errors. How do i resolve the issue?
"

$ npm ls | grep graphql
+-- [email protected]
+-- [email protected]
"

THE ERROR

    {
  "errors": [
    {
      "message": "Cannot use GraphQLSchema \"[object GraphQLSchema]\" from another module or realm.\n\nEnsure that there is only one instance of \"graphql\" in the node_modules\ndirectory. If different versions of \"graphql\" are the dependencies of other\nrelied on modules, use \"resolutions\" to ensure only one version is installed.\n\nhttps://yarnpkg.com/en/docs/selective-version-resolutions\n\nDuplicate \"graphql\" modules cannot be used at the same time since different\nversions may have different capabilities and behavior. The data from one\nversion used in the function from another could produce confusing and\nspurious results."
    }
  ]
}

w3rc on 11 Jan 2019

👍14

All 7 comments

What is the output of running npm ls | grep graphql in your project?

NeoPhi on 7 May 2018

⚡ npm ls | grep graphql
│ │ │ └── [email protected] deduped
│ │ │ └── [email protected] deduped
│ │ └─┬ [email protected]
├─┬ [email protected]
├─┬ [email protected] invalid
├── [email protected]
npm ERR! extraneous: node-pre-gyp /....../node_modules/node-pre-gyp
npm ERR! error in /....../node_modules/node-pre-gyp: ENOENT: no such file or directory, open '/....../node_modules/node-pre-gyp/package.json'
npm ERR! invalid: [email protected] /....../node_modules/graphql-tools
npm ERR! extraneous: [email protected] /....../node_modules/apollo-link
npm ERR! extraneous: [email protected] /....../node_modules/apollo-utilities
npm ERR! extraneous: [email protected] /....../node_modules/deprecated-decorator

elie222 on 8 May 2018

😕1

I would resolve the npm ERR! to see if that fixes the issue. Might need to remove your existing node_modules and reinstall.

NeoPhi on 9 May 2018

Thanks. That node-gyp stuff has been mad annoying recently.

elie222 on 14 May 2018

i have the same error and "npm ls | grep graphql" did not show any errors. How do i resolve the issue?
"

$ npm ls | grep graphql
+-- [email protected]
+-- [email protected]
"

THE ERROR

    {
  "errors": [
    {
      "message": "Cannot use GraphQLSchema \"[object GraphQLSchema]\" from another module or realm.\n\nEnsure that there is only one instance of \"graphql\" in the node_modules\ndirectory. If different versions of \"graphql\" are the dependencies of other\nrelied on modules, use \"resolutions\" to ensure only one version is installed.\n\nhttps://yarnpkg.com/en/docs/selective-version-resolutions\n\nDuplicate \"graphql\" modules cannot be used at the same time since different\nversions may have different capabilities and behavior. The data from one\nversion used in the function from another could produce confusing and\nspurious results."
    }
  ]
}

w3rc on 11 Jan 2019

👍14

I have an error :- "message": "Cannot use GraphQLSchema \"[object GraphQLSchema]\" from another module or realm.\n\nEnsure that there is only one instance of \"graphql\" in the node_modules\ndirectory. If different versions of \"graphql\" are the dependencies of other\nrelied on modules, use \"resolutions\" to ensure only one version is installed.\n\nhttps://yarnpkg.com/en/docs/selective-version-resolutions\n\nDuplicate \"graphql\" modules cannot be used at the same time since different\nversions may have different capabilities and behavior. The data from one\nversion used in the function from another could produce confusing and\nspurious results."

can u please let me know what the actual error is

sakshisharma155 on 23 Jul 2020

In my case, realized I was using graphql v15.x.x in my application package.json while graphql-yoga was using graphql v14.x.x. Deleted the v15.x.x and replaced it with v14.x.x works. That created a single graphql v14.x.x to be used.

Hope this helps.