rsconnect deploy shiny D:\AYWY\250617\wy -n yuwang2009 -e wyARF0720.py
Validating server... [OK]
Validating app mode... [OK]
Making bundle ... [OK]
Deploying bundle ... [ERROR]: shinyapps.io reported an error (calling /v1/applications/): Request Validation Error: : field 'name': is invalid application name. application name must be at least 4 characters, and may only contain letters, numbers, dashes and hyphens.
There are no error of application name! Why?