How to use update_version script

[AnouarNechi]

Hello
I am trying to use update script order to make the zedboard project work with Vivado 2019.1
What I tried is that I copied the two following files to my project directory and I did the following:
./upgrade_version.sh zedboard_rocketchip_ZynqFPGAConfig.xpr
and I keep getting the following:
+++ pwd
++ basename /home/nechi/Desktop/fpga-zynq/zedboard/zedboard_rocketchip_ZynqFPGAConfig
+ project=zedboard_rocketchip_ZynqFPGAConfig
+ source zedboard_rocketchip_ZynqFPGAConfig.xpr
zedboard_rocketchip_ZynqFPGAConfig.xpr: line 1: syntax error near unexpected token 'newline'
what am I doing wrong?