ffi gem 1.9.21安装成功.我也试过运行这些命令但没有成功.
sudo apt install libffi-dev
gem inst ffi
部署到AWS时会发生此错误.错误看起来像这样.
Installing dotenv 2.2.1
Installing request_store 1.3.2
Installing draper 3.0.1
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/opt/rubies/ruby-2.2.3/bin/ruby -r ./siteconf20180207-2245-1bjhja4.rb extconf.rb
checking for ffi.h... no
checking for ffi.h in /usr/local/include,/usr/include/ffi... no
checking for shlwapi.h... no
checking for rb_thread_blocking_region()... no
checking for rb_thread_call_with_gvl()... yes
checking for rb_thread_call_without_gvl()... yes
creating extconf.h
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
Running autoreconf for libffi
/var/app/ondeck/vendor/bundle/gems/ffi-1.9.21/ext/ffi_c/libffi/autogen.sh: line 2: exec: autoreconf: not found
make: *** …