以下是错误信息：
install.packages("Rwordseg", repos = "http://R-Forge.R-project.org", type = "source")
trying URL 'http://R-Forge.R-project.org/src/contrib/Rwordseg_0.2-1.tar.gz'
Content type 'application/x-gzip' length 5445754 bytes (5.2 MB)
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downloaded 5.2 MB

* installing *source* package ‘Rwordseg’ ...
** R
** demo
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded
JavaVM: requested Java version ((null)) not available. Using Java at "" instead.
JavaVM: Failed to load JVM: /bundle/Libraries/libserver.dylib
JavaVM FATAL: Failed to load the jvm library.
Error : .onAttach failed in attachNamespace() for 'Rwordseg', details:
  call: .jinit()
  error: JNI_GetCreatedJavaVMs returned -1

Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/Library/Frameworks/R.framework/Versions/3.3/Resources/library/Rwordseg’
Warning in install.packages :
  installation of package ‘Rwordseg’ had non-zero exit status


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请问各位大神我应该如何设置才能安装成功？