r - Shiny App Error: /v1/applications/ 400 - Validation Error Execution halted -

hi i'm having million problems trying publish app shiny.io.

firstly, have rtools 3.2 installed in computer , set path, not recognized in registry. nevermind, code should fix it:

install.packages("installr") library(installr) install.rtools(choose_version = false, check = true, use_gui = true, page_with_download_url = "http://cran.r-project.org/bin/windows/rtools/, keep_install_file=true") install.packages("devtools") library(devtools) devtools::install_github('rstudio/shinyapps') 

next, deploy app shiny.io account:

library(shinyapps) shinyapps::setaccountinfo(name='xxxx', token='xxxxxxxxxx', secret='xxxxxxxx') 

then app starts running in browser, , click publish shiny account. however, when app being deployed, shows following error:

preparing deploy application...error: /v1/applications/ 400 - validation error execution halted 

any ideas problems may be? thank you.

i had same error returned. in case problem name of app itself. deployed apps must have names @ least 4 characters long no spaces.