From there, switch over and reinstall the OS. For example, if you are on Sierra 10.12.4, first open Mac App Store, click the Update button under Updates tab, upgrade your Mac to 10.12.6 first, and then install the latest macOS Mojave. Reboot to Recovery mode (Cmd-R), and erase/reformat the internal drive to Mac OS Extended (Journaled). How to Fix: Update your Mac to the newest version first, then install macOS Mojave. Using CCC, create a fully bootable copy of my Mac onto external drive 2. The simple plug-and-play function allows you to connect your computer to a second monitor or projector within seconds to create a new visual environment on Windows® 10. What i did instead, from being in my Mojave stuck in beta Mac: Create a full Time Machine backup onto external backup drive 1. These adapters are also backwards compatible with USB™ 2.0 resolutions and playback, which are ideal for office applications. Now enjoy true 1080p HD resolution through any Windows® or Mac® computer with a USB™ 3.0 port. You can have a second monitor with an extended display, a mirrored display, a rotational display (rotation mode not available for Mac® ), or make it your primary monitor. This USB™ adapter works as an external video card, instantly allowing additional displays without the hassle of opening the computer casing and installing an external graphics card. The USB™ 3.0 Display Adapter can support up to four displays running on the same computer, turning your workstation into a fully-functioning, multi-display powerhouse. Results logged to /Library/Ruby/Gems/2.3.0/extensions/universal-darwin-18/2.3.0/unf_ext-0.0.7.5/gem_make.The JUA254/255 USB™ to HDMI™ Multi-Monitor Adapter works as an external video card, instantly allowing users to attach additional displays via HDMI™ connection without the hassle of a lengthy setup or having to install additional hardware. Gem files will remain installed in /Library/Ruby/Gems/2.3.0/gems/unf_ext-0.0.7.5 for inspection. To see why this extension failed to compile, please check the mkmf.log which can be found here: What happened Just running the installation script again (without 'uninstalling') gives me this: What did you expect to happen A successful installation Is there anything in any of your profile files (. You have to install development tools first.įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:535:in `block in try_link0'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/tmpdir.rb:89:in `mktmpdir'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:532:in `try_link0'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:556:in `try_link'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:765:in `try_func'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:997:in `block in have_library'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:942:in `block in checking_for'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:350:in `block (2 levels) in postpone'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:320:in `open'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:350:in `block in postpone'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:346:in `postpone'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:941:in `checking_for'įrom /System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:992:in `have_library' System/Library/Frameworks/amework/Versions/2.3/usr/lib/ruby/2.3.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. ruby=/System/Library/Frameworks/amework/Versions/2.3/usr/bin/$(RUBY_BASE_NAME) Check the mkmf.log file for more details. *** extconf.rb failed ***Ĭould not create Makefile due to some reason, probably lack of necessary System/Library/Frameworks/amework/Versions/2.3/usr/bin/ruby -r. This could take a while.ĮRROR: Failed to build gem native extension.Ĭurrent directory: /Library/Ruby/Gems/2.3.0/gems/unf_ext-0.0.7.5/ext/unf_ext SevendeiMac:~ sevenmac$ sudo gem install -n /usr/local/bin fastlaneīuilding native extensions.
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