# npm resolution error report

2021-03-25T09:30:53.923Z

While resolving: gatsby-starter-default@0.1.0
Found: react@17.0.2
node_modules/react
  react@"^17.0.1" from the root project

Could not resolve dependency:
peer react@"15.x || 16.x || 16.4.0-alpha.0911da3" from @reach/router@1.3.4
node_modules/@reach/router
  @reach/router@"^1.3.4" from the root project

Fix the upstream dependency conflict, or retry
this command with --force, or --legacy-peer-deps
to accept an incorrect (and potentially broken) dependency resolution.

Raw JSON explanation object:

{
  "code": "ERESOLVE",
  "current": {
    "name": "react",
    "version": "17.0.2",
    "whileInstalling": {
      "name": "gatsby-starter-default",
      "version": "0.1.0",
      "path": "D:\\angular\\workspace\\demisel"
    },
    "location": "node_modules/react",
    "dependents": [
      {
        "type": "prod",
        "name": "react",
        "spec": "^17.0.1",
        "from": {
          "location": "D:\\angular\\workspace\\demisel"
        }
      }
    ]
  },
  "edge": {
    "type": "peer",
    "name": "react",
    "spec": "15.x || 16.x || 16.4.0-alpha.0911da3",
    "error": "INVALID",
    "from": {
      "name": "@reach/router",
      "version": "1.3.4",
      "whileInstalling": {
        "name": "gatsby-starter-default",
        "version": "0.1.0",
        "path": "D:\\angular\\workspace\\demisel"
      },
      "location": "node_modules/@reach/router",
      "dependents": [
        {
          "type": "prod",
          "name": "@reach/router",
          "spec": "^1.3.4",
          "from": {
            "location": "D:\\angular\\workspace\\demisel"
          }
        }
      ]
    }
  },
  "peerConflict": null,
  "strictPeerDeps": false,
  "force": false
}