Localized bundle generation failed: Cannot read properties of undefined (reading 'file') - Angular Localize

Question

I've installed the angular localize package, and it's working locally, but when I try to build to production I got this error:

Localized bundle generation failed: Cannot read properties of undefined (reading 'file')

I'm using Angular: 10.2.5. If I run ng server the project builds and I can see the translation. I have more projects inside the same structure.

My angular.json file:

{
  "sport": {
    ...
    "i18n": {
      "sourceLocale": "de",
      "locales": {
        "en": "apps/sport/locale/messages.en.xlf"
      }
    },
    "architect": {
      "build": {
        "builder": "@angular-devkit/build-angular:browser",
        "options": {
          ...
          "localize": true,
          "aot": true
        },
        "configurations": {
          "production": {
            "fileReplacements": [
              {
                "replace": "apps/sport/src/environments/environment.ts",
                "with": "apps/sport/src/environments/environment.prod.ts"
              }
            ],
            ...
            "sourceMap": true
          },
          "en": {
            "aot": true,
            "localize": ["en"]
          },
          "e2e": {
            "fileReplacements": [
              {
                "replace": "apps/sport/src/environments/environment.ts",
                "with": "apps/sport/src/environments/environment.e2e.ts"
              }
            ]
          }
        }
      },
      "serve": {
        "builder": "@angular-devkit/build-angular:dev-server",
        "options": {
          "browserTarget": "sport:build",
          "port": 4201
        },
        "configurations": {
          "production": {
            "browserTarget": "sport:build:production"
          },
          "en": {
            "browserTarget": "sport:build:en"
          }
        }
      },
      "extract-i18n": {
        "builder": "@angular-devkit/build-angular:extract-i18n",
        "options": {
          "browserTarget": "sport:build"
        }
      }
    }
  }
}