尝试在Rstudio中加载包时出错

Question

我正尝试在新的Macbook Pro上安装CosmoPhotoz包。我从来没有在R和Rstudio中安装软件包的问题，​​所以我不知道如何去解决这个错误。

install.packages("CosmoPhotoz", repos="http://cran.rstudio.com/", 
    dependencies=TRUE) 
    library(CosmoPhotoz) 

这是错误消息：

Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : 
namespace ‘htmltools’ 0.2.6 is being loaded, but >= 0.3 is required 
In addition: Warning messages: 
1: replacing previous import by ‘grid::arrow’ when loading ‘ggthemes’ 
2: replacing previous import by ‘grid::unit’ when loading ‘ggthemes’ 
3: replacing previous import by ‘scales::alpha’ when loading ‘ggthemes’ 
Error: package or namespace load failed for ‘CosmoPhotoz’ 

Answer 1

我与另一包（sqldf）有同样的问题。

尝试使用：

install.packages(htmltools) 
install.packages("CosmoPhotoz")