I upgraded to El Capitan in my new Macbook Air. El Capitan does not allow to use
/usr/texbin/ for storage so LaTeX community had to move their files to
MacTeX 2015 is not fully compatible with El Capitan.
There is at least some path reconfigurations which has to be done in individual programs described in the guide.
However, I have not succeeded in getting MacTeX fully working in El Capitan.
Fixing LaTeX in El Capitan
All stages went right but not the following with TeX Live Utility. I am doing the step in the guide MacTEX-2015 and El Capitan (page 3)
For previous versions of TEX Live Utility open TEX Live Utility→Preferences and click on the Choose. . . button as in Figure (4). That opens a file chooser. Type Shift-Cmd-G, enter /Library/TeX into the dialog box as shown in Figure (5) and then press Return. Finally DoubleClick on texbin.
After Unsuccessful Setup-2015.pkg
rm ~/Library/Preferences/com.googlecode.mactlmgr.tlu.plist to delete the changes made by the applicaiton Setup-2015.pkg proposed by hakaze, because of infinity loop when starting Tex-live with those changes.
I found the
How can you set up MacTeX 2015 successfully in El Capitan?