`@nx/eslint` not compatible with ESLint 10

[Bricklou]

Current Behavior

❯ pnpm nx run lint

 NX   Failed to process project graph.

2 errors occurred while processing files for the @nx/eslint/plugin plugin (Defined at nx.json#plugins[2]).
  - apps/documentation/eslint.config.mjs: Cannot read properties of undefined (reading 'version')
  - eslint.config.mjs: Cannot read properties of undefined (reading 'version')

Expected Behavior

nx lint should run normally

GitHub Repo

No response

Steps to Reproduce

1. have any project with @nx/eslint 22.5.0 and eslint 10.x.x installed (v10 requires flat config)
2. try to run the nx run lint command
3. see the error

Nx Report

❯ pnpm nx report

 NX   Report complete - copy this into the issue template

Node           : 24.3.0
OS             : linux-x64
Native Target  : x86_64-linux
pnpm           : 10.28.2
daemon         : Available

nx                 : 22.5.0
@nx/js             : 22.5.0
@nx/eslint         : 22.5.0
@nx/workspace      : 22.5.0
@nx/devkit         : 22.5.0
@nx/eslint-plugin  : 22.5.0
@nx/nuxt           : 22.5.0
@nx/vite           : 22.5.0
@nx/vitest         : 22.5.0
@nx/vue            : 22.5.0
@nx/web            : 22.5.0
typescript         : 5.9.3
---------------------------------------
Registered Plugins:
@nx/nuxt/plugin
@nx/js/typescript
@nx/eslint/plugin
---------------------------------------
Cache Usage: 0.00 B / 155.11 GB
---------------------------------------
⚠️ Unable to construct project graph.
Failed to process project graph.
     - apps/documentation/eslint.config.mjs: TypeError: Cannot read properties of undefined (reading 'version')
      at internalCreateNodesV2 (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/@nx+eslint@22.5.0_patch_hash=378599217d59860a5ea36f85d77d062ad91588e7c8aa9a001532614298_f17e802a630f949b1cc68d60557247b8/node_modules/@nx/eslint/src/plugins/plugin.js:44:34)
      at /mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/@nx+eslint@22.5.0_patch_hash=378599217d59860a5ea36f85d77d062ad91588e7c8aa9a001532614298_f17e802a630f949b1cc68d60557247b8/node_modules/@nx/eslint/src/plugins/plugin.js:110:95
      at /mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/utils.js:10:33
      at Array.map (<anonymous>)
      at createNodesFromFiles (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/utils.js:8:35)
      at exports.createNodes (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/@nx+eslint@22.5.0_patch_hash=378599217d59860a5ea36f85d77d062ad91588e7c8aa9a001532614298_f17e802a630f949b1cc68d60557247b8/node_modules/@nx/eslint/src/plugins/plugin.js:110:60)
      at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
      at async LoadedNxPlugin.createNodes (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/loaded-nx-plugin.js:26:36)
      at async LoadedNxPlugin.createNodes.<computed> (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/loaded-nx-plugin.js:40:28)
      at async createNodes (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/isolation/plugin-worker.js:74:36)
   - eslint.config.mjs: TypeError: Cannot read properties of undefined (reading 'version')
      at internalCreateNodesV2 (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/@nx+eslint@22.5.0_patch_hash=378599217d59860a5ea36f85d77d062ad91588e7c8aa9a001532614298_f17e802a630f949b1cc68d60557247b8/node_modules/@nx/eslint/src/plugins/plugin.js:44:34)
      at /mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/@nx+eslint@22.5.0_patch_hash=378599217d59860a5ea36f85d77d062ad91588e7c8aa9a001532614298_f17e802a630f949b1cc68d60557247b8/node_modules/@nx/eslint/src/plugins/plugin.js:110:95
      at /mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/utils.js:10:33
      at Array.map (<anonymous>)
      at createNodesFromFiles (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/utils.js:8:35)
      at exports.createNodes (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/@nx+eslint@22.5.0_patch_hash=378599217d59860a5ea36f85d77d062ad91588e7c8aa9a001532614298_f17e802a630f949b1cc68d60557247b8/node_modules/@nx/eslint/src/plugins/plugin.js:110:60)
      at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
      at async LoadedNxPlugin.createNodes (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/loaded-nx-plugin.js:26:36)
      at async LoadedNxPlugin.createNodes.<computed> (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/loaded-nx-plugin.js:40:28)
      at async createNodes (/mnt/shared/Documents/Programmation/projets/kubestro/kubestro/node_modules/.pnpm/nx@22.5.0_@swc-node+register@1.11.1_@swc+core@1.15.11_@swc+helpers@0.5.18__@swc+types@0_1a953fb3c7fd7cb5ce6258e9e209fbf6/node_modules/nx/src/project-graph/plugins/isolation/plugin-worker.js:74:36)

Failure Logs

Package Manager Version

pnpm 10.28.2

Operating System

• macOS
• Linux
• Windows
• Other (Please specify)

Additional Information

Cause : FlatESLint as been renamed ESLint and LegacyESLint has been removed. In order to add compatibility to this breaking change to packages/eslint/src/utils/resolve-eslint-class.ts is required to check if either ESLint exists, otherwise try to fallback to FlatConfig and LegacyConfig.

See: https://eslint.org/docs/latest/use/migrate-to-10.0.0#-old-config-format-no-longer-supported

[alfaproject]

Meh, we also just got hit by this issue ):