Bom dia pessoal

Estou criando um pacote R, quando executo o comando "R CMD check diretorio_do_meu_pacote" de dentro do diretório "/home/ecacarva/R/x86_64-pc-linux-gnu-library/3.3/" onde tem a pasta do pacote instalado para gerar o manual em pdf, ocorre o erro: Only *source* packages can be checked.

Alguém poderia me ajudar ?

* using log directory ‘/home/ecacarva/R/x86_64-pc-linux-gnu-library/3.3/bnpa.Rcheck’
* using R version 3.3.2 (2016-10-31)
* using platform: x86_64-pc-linux-gnu (64-bit)
* using session charset: UTF-8
* checking for file ‘bnpa/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘bnpa’ version ‘0.1.0’
* package encoding: UTF-8
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... ERROR
Only *source* packages can be checked.
* DONE
Status: 1 ERROR

Meu file description tem o seguinte conteúdo:

Package: bnpa
Type: Package
Title: Bayesian Networks & Path Analysis
Version: 0.1.0
Date: 2016-11-30
Depends: R (>= 3.2.3)
Suggests: bnlearn, gdata, graph, lavaan, parallel, plyr, Rgraphviz, stats, semPlot, qgraph
Author: Elias C A Carvalho, Joao R N Vissoci, Luciano Andrade, Emerson P Cabrera, Julio C Nievola
Maintainer: Elias C A Carvalho <ecacarva@gmail.com>
Description: Functions to help a novice research to build Path Analysis model. 
URL: 
License: GPL-3
Encoding: UTF-8
LazyData: TRUE
RoxygenNote: 5.0.1

--
In Jesu et Maria

Obrigado
Prof. Elias Carvalho

"Felix, qui potuit rerum cognoscere causas" (Virgil 29 BC)
"Blessed is he who has been able to understand the cause of things"