在 Rstudio 中加载数据时出现错误“ReadItem：未知类型 161，可能由更高版本的 R 编写”？

Question

When I am trying to load a clean data in Rstudio, file name called salesClean.RData, I am getting error.

Error message is: ReadItem: unknown type 161, perhaps written by later version of R

Screenshot of error message:

Answer 1

Here is what worked for me:

Simple Solution:

Try to use the tool Load Workspace . It allows you to select the Rds file and load it into memory.

Best Solution:

In some cases you do need to load the file programatically. In these situations you will probably prefer get your R up to date. You can do this by running the code:

install.packages("installr")
require(installr)
updateR()

Also, you can update your installed packages in RStudio on Tools > Check for packages updates.

Answer 2

Make sure that you're using the latest version not only of Rstudio, but R as well. Try sessionInfo() command, it should say that you have R version 3.1.2.

Answer 3

In my case, finally I found it's because the hard disk under my root is full. I freed some disk memory and re-saved the .RDdata file, the load works again.

Answer 4

For me, had a very similar experience to @CcMango, though for me it was because I had run out of session memory. I restarted my Rstudio session with fresh memory and loaded fewer files and that solved it. For similar issues, I've had luck rewriting in batches or querying from other sources too.