所有包都无法加载，把Rstudio卸载重装也没用。折腾了很久也没解决，谢谢大家帮助
> library(reshape)
Error in get(Info, envir = env) : lazy-load database ‘P’ is corrupt
In addition: Warning message:
In get(Info, envir = env) : internal error -2 in R_decompress1
Error: ‘reshape’程辑包或名字空间载入失败，