main:Object 的未定义局部变量或方法“make”（NameError）

undefined local variable or method `make' for main:Object (NameError)

我在 Ubuntu 18 尝试安装 rest-client sudo gem install rest-client 时遇到以下错误： 

current directory: /var/lib/gems/2.5.0/gems/unf_ext-0.0.7.6/ext/unf_ext
/usr/bin/ruby2.5 -r ./siteconf20191111-4360-816cyg.rb extconf.rb
checking for -lstdc++... no
creating Makefile

current directory: /var/lib/gems/2.5.0/gems/unf_ext-0.0.7.6/ext/unf_ext
make "DESTDIR=" clean
/var/lib/gems/2.5.0/gems/make-0.3.1/bin/make:4:in `<top (required)>': undefined local variable or method `make' for main:Object (NameError)
    from /usr/local/bin/make:23:in `load'
    from /usr/local/bin/make:23:in `<main>'

current directory: /var/lib/gems/2.5.0/gems/unf_ext-0.0.7.6/ext/unf_ext
make "DESTDIR="
/var/lib/gems/2.5.0/gems/make-0.3.1/bin/make:4:in `<top (required)>': undefined local variable or method `make' for main:Object (NameError)
    from /usr/local/bin/make:23:in `load'
    from /usr/local/bin/make:23:in `<main>'

make failed, exit code 1

尝试安装 gcc、ruby-dev、make，但没有帮助！
谁能帮帮我？

通常，

sudo apt-get install build-essential

应该可以。