Error de NuGet NU5042

  • Artículo 
`project.json` pack is disabled in the current NuGet version, and will be permanently removed in a future version.
Please consider migrating 'MyProject' to `PackageReference` and using the pack targets.
You can set the 'NUGET_ENABLE_LEGACY_PROJECT_JSON_PACK' environment variable to 'true' to temporarily reenable this functionality.

Problema

No se admite el paquete NuGet.exe para proyectos project.json.

Solución

Migre el proyecto a PackageReference y use los destinos del paquete en su lugar.