Error in h(simpleError(msg, call)) : error in evaluating the argument ‘con‘ in selecting a method

报错

Error in h(simpleError(msg, call)) :
  error in evaluating the argument 'con' in selecting a method for function 'import': invalid class “GFF2File” object: undefined class for slot "resource" ("characterORconnection")
Calls: suppressMessages -> withCallingHandlers

解决方法
在R里输入

if (!requireNamespace("devtools", quietly = TRUE)){ install.packages("devtools") }
devtools::install_github("kvittingseerup/IsoformSwitchAnalyzeR", build_vignettes = TRUE)