包或命名空間加載失敗

Question

我不知道發生了什么，但每當我打電話給預測包時，這個NAMESPACE LOAD FAILURE就會到來。

所以我使用了這行代碼

install.packages("forecast",repos = c("http://rstudio.org/_packages",
                            "http://cran.rstudio.com"))

這是我在運行此代碼后得到的控制台消息

Installing package into ‘C:/Users/adarsh/Documents/R/win-library/3.5’
(as ‘lib’ is unspecified)
Warning in install.packages :
  unable to access index for repository 
http://rstudio.org/_packages/bin/windows/contrib/3.5:
  cannot open URL 
'http://rstudio.org/_packages/bin/windows/contrib/3.5/PACKAGES'

  There is a binary version available but the
  source version is later:
         binary source needs_compilation
forecast    8.6    8.7              TRUE

  Binaries will be installed
trying URL 
'http://cran.rstudio.com/bin/windows/contrib/3.5/forecast_8.6.zip' 
Content type 'application/zip' length 2345112 bytes (2.2 MB)
downloaded 2.2 MB

package ‘forecast’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
C:\Users\adarsh\AppData\Local\Temp\RtmpQ58pju\downloaded_packages

我檢查了其他包裝是否也是如此。

install.packages("tseries")


Installing package into ‘C:/Users/adarsh/Documents/R/win-library/3.5’
(as ‘lib’ is unspecified)
Warning in install.packages :
  dependency ‘quadprog’ is not available
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.5/tseries_0.10-46.zip'
Content type 'application/zip' length 414767 bytes (405 KB)
downloaded 405 KB
package ‘tseries’ successfully unpacked and MD5 sums checked**

**The downloaded binary packages are in
    C:\Users\adarsh\AppData\Local\Temp\RtmpQ1vu1H\downloaded_packages**


    library(tseries)


Error: package or namespace load failed for ‘tseries’ in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
 there is no package called ‘quadprog’
In addition: Warning message:
package ‘tseries’ was built under R version 3.5.3  

同樣的錯誤再次發生。 請有人幫幫我。

Answer 1

我從cran存儲庫下載了“ quadprog ”軟件包，並將其保存為C：//Users/yourname/Documents/package_file.zip中的 zip文件。

然后在R studio中使用選項包存檔文件（.zip; .tar.gz）並安裝上述包。

謝謝