macOsにscssをインストールしたいが出来ない。
コマンドで打ち込んだのか下記のリンクを参考して以下の通りです。
MacOS SierraでSassがインストール出来ない時の解決策
MacOS Sierraでsassとcompassをインストールできない
コマンドから
sudo gem install sass -n /usr/local/bin/
で下記のエラー
ERROR: Error installing sass: ERROR: Failed to build gem native extension.
そこで
$xcode-select --install $sudo gcc --version
を試しましたが、
xcode-select: error: command line tools are already installed, use "Software Update" to install updates
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/c++/4.2.1 Apple clang version 12.0.0 (clang-1200.0.32.27) Target: x86_64-apple-darwin19.6.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
と帰ってきてxcode
はインストール済み、gcc
も古いバージョンではなさそうです(このコマンドを打ち込む意味は理解していない)
再度
sudo gem install sass -n /usr/local/bin/
としても上記と同じエラーが帰ってきます。
どうすればよいのでしょうか?
###試したこと
gemのアップデート
sudo gem update --system -n /usr/local/bin
コマンドラインツールの再インストール
sudo rm -rf /Library/Developer/CommandLineTools xcode-select --install sudo xcodebuild -license accept
どれも変化なしです。
macOs: Catalina 10.15.7
gem: 3.1.4
ruby: 2.6.3p62
下記にエラー全文を挙げていきます。宜しくおねがいします。
###エラー全文
ERROR: Error installing sass: ERROR: Failed to build gem native extension. current directory: /Library/Ruby/Gems/2.6.0/gems/ffi-1.13.1/ext/ffi_c /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby -I /Library/Ruby/Site/2.6.0 -r ./siteconf20201204-12991-18pc3ev.rb extconf.rb checking for ffi.h... *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/$(RUBY_BASE_NAME) --with-ffi_c-dir --without-ffi_c-dir --with-ffi_c-include --without-ffi_c-include=${ffi_c-dir}/include --with-ffi_c-lib --without-ffi_c-lib=${ffi_c-dir}/lib --enable-system-libffi --disable-system-libffi --with-libffi-config --without-libffi-config --with-pkg-config --without-pkg-config /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:467:in `try_do': The compiler failed to generate an executable file. (RuntimeError) You have to install development tools first. from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:585:in `block in try_compile' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:534:in `with_werror' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:585:in `try_compile' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:1109:in `block in have_header' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:959:in `block in checking_for' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:361:in `block (2 levels) in postpone' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:331:in `open' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:361:in `block in postpone' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:331:in `open' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:357:in `postpone' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:958:in `checking_for' from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/mkmf.rb:1108:in `have_header' from extconf.rb:10:in `system_libffi_usable?' from extconf.rb:42:in `<main>' To see why this extension failed to compile, please check the mkmf.log which can be found here: /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/ffi-1.13.1/mkmf.log extconf failed, exit code 1 Gem files will remain installed in /Library/Ruby/Gems/2.6.0/gems/ffi-1.13.1 for inspection. Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/ffi-1.13.1/gem_make.out
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2020/12/06 10:54