在网上找了说
Find your sqlite3 gemspec file. One example is /usr/local/share/gem/specifications/sqlite3-1.3.7.gemspec
Windows: C:\Ruby21\lib\ruby\gems\2.1.0\specifications.
You should adjust according with your Rubygem path and sqlite3 version. Edit the file above and look for the following line
s.require_paths=["lib"]
change it to
s.require_paths= ["lib/sqlite3_native"]
我根据安装的改成s.require_paths= ["lib/sqlite3"]
后面又有新的 “cann't load such file"
求指教,谢谢