我在Rhub中有这个错误：
需要包裹但不可用：'data.table'
我该如何解决？我必须使用Rtools来编译data.table吗？如何向rhub发送data.table的来源？
> check_for_cran()
─ Building package
─ Uploading package
─ Preparing build, see status at
http://builder.r-hub.io/status/antaresRead_2.1.0.tar.gz-ce77306bf5ed4e209d7ab47e29cb8e1d
http://builder.r-hub.io/status/antaresRead_2.1.0.tar.gz-a55c7a25f1194d1099b8caff38ac75ad
http://builder.r-hub.io/status/antaresRead_2.1.0.tar.gz-ab116b954ad74365b38ea9e351865755
─ Build started
─ Creating new user
─ Downloading and unpacking package file
─ Querying package dependencies
─ Installing package dependencies
─ Running R CMD check
setting _R_CHECK_FORCE_SUGGESTS_ to false
setting _R_CHECK_FORCE_SUGGESTS_ to true
setting _R_CHECK_CRAN_INCOMING_USE_ASPELL_ to true
─ using log directory 'C:/Users/USERjsUieVILNr/antaresRead.Rcheck'
─ using R Under development (unstable) (2018-02-19 r74276)
─ using platform: x86_64-w64-mingw32 (64-bit)
─ using session charset: ISO8859-1
─ using option '--as-cran'
✔ checking for file 'antaresRead/DESCRIPTION'
─ checking extension type ... Package
─ this is package 'antaresRead' version '2.1.0'
─ package encoding: UTF-8
N checking CRAN incoming feasibility
>
>
> New submission
Maintainer: 'Jalal-Edine ZAWAM <jalal-edine.zawam@rte-france.com>'
Package was archived on CRAN
Possibly mis-spelled words in DESCRIPTION:
R�seau (16:41)
de (16:48)
d� (16:61)
lectricit� (16:64)
CRAN repository db overrides:
X-CRAN-Comment: Archived on 2018-02-20 as check problems were not
corrected despite reminders.
Unconditional use of Suggests package(s) from BioC.
✔ checking package namespace information
E checking package dependencies
Package required but not available: 'data.table'
See section 'The DESCRIPTION file' in the 'Writing R Extensions'
manual.
── 1 error ✖ | 0 warnings ✔ | 1 note ✖
─ Done with R CMD check
─ Cleaning up files and user
如何防止此错误需要包但不可用：'data.table'？