I tried the installation last night and have the same issue.
I used the same installation process except for two exceptions:
(1) My SD card is partitioned for multiple OS’ using NOOBS
(2) I elected for the Souce-Based Installation (custom), not Binaries
The error is the same:
Line 11 /home/pi/retropie/supplementary/EmulationStation/emulationstation: No such file or directory…