我正在尝试使用 net/sftp gem 从 Heroku 的 SFTP To Go 下载文件，但我总是得到未定义的方法 `e=' for #.
一直在网上搜索，但找不到任何相关的解决方案。这是我的代码：
task employer_email_import: :environment do
require 'net/sftp'
require 'uri'
sftptogo_url = ENV['SFTPTOGO_URL']
uri = URI.parse(sftptogo_url)
Net::SFTP.start(uri.host, uri.user, :password => uri.password) do |sftp|
sftp.download!("some_directory", "some_directory")
end
end
错误： #< OpenSSL::PKey::RSA:0x00563aaff72138> 的未定义方法 `e=' 您的意思是？e**********
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RUBY_VERSION => "2.4.0"
OpenSSL::OPENSSL_VERSION => "OpenSSL 1.1.0g 2017 年 11 月 2 日"
OpenSSL::VERSION => "2.0.2"
rails --version => Rails 5.0.7.1