Changes in version 0.0.1 (2021-11-02)                  

  - R-packages such as rJava and xlsx are difficult to install. so I
    made this package to separate dependencies of these packages from
    some package.

The following code makes rJava work fine, but I am not sure that this is
effective for others.

 if(Sys.getenv("JAVA_HOME")!=""){
    Sys.setenv(JAVA_HOME="")
}

The above code is effective for my following error

   i Loading pkg
  Error: Dependency package(s) 'xlsx' not available.
  Run `rlang::last_error()` to see where the error occurred.
  In addition: Warning message:
  In (function (dep_name, dep_ver = "*")  :
    Dependency package 'xlsx' not available.

For error of rJava, the above code is also effective.

NOTE: As the environment variable JAVA_HOME, the path C:\Program Files
(x86)\Java\jre1.8.0_311 is not correct ....I also tried jdk.