When you come to resource command operation which is help you to provide all versions for android and ios icon and splash images. You may get an exception as following;
to solve this problem you just need to use following web site and try to compress your images then try it again, its going to work like a charm :)
website: https://tinypng.com/
Try to use resources command for ios and android as following;
ios resources command :
android resources command :
ionic cordova resources android --no-timeout
✔ Collecting resource configuration and source images - done!
✔ Filtering out image resources that do not need regeneration - done!
✖ Uploading source images to prepare for transformations - failed!
HTTP Error 400: POST https://res.ionic.io/api/v1/upload
{"Error":"unable to read uploaded image","Width":0,"Height":0,"Type":"png","Vector":false}
to solve this problem you just need to use following web site and try to compress your images then try it again, its going to work like a charm :)
website: https://tinypng.com/
Try to use resources command for ios and android as following;
ios resources command :
ionic cordova resources ios --no-timeout
android resources command :
ionic cordova resources android --no-timeout