ionic-cli: Stuck at Generating platform resources: 29 / 32 complete

Description: stuck at generate platform resources while run

ionic cordova platform add ios

every time i run this code get same result. !stuck at 29/32 resources.

Output:

ionic cordova resources ios --force ✔ Collecting resource configuration and source images - done! ✔ Filtering out image resources that do not need regeneration - done! ✔ Uploading source images to prepare for transformations: 2 / 2 complete - done! ⠏ Generating platform resources: 29 / 32 complete

My ionic info:

Ionic:

   ionic (Ionic CLI) : 4.0.1

Also try manual using command

ionic cordova resources --force [WARN] Detected locally installed Ionic CLI, but it’s too old–using global CLI. ✔ Collecting resource configuration and source images - done! ✔ Filtering out image resources that do not need regeneration - done! ✔ Uploading source images to prepare for transformations: 2 / 2 complete - done! ✖ Generating platform resources: 37 / 50 complete - failed! [ERROR] Resource server responded with an error.

    This could mean the server is experiencing difficulties right now--please try again later.

    Request: POST https://res.ionic.io/api/v1/transform
    Response: 503