Issue while saving standard theme to custom

Hello,

I have an issue while Save and Build of the theme. I have followed the exact steps and used SAP_BlueCrystal as base for my custom theme as per the folliwing blog:

How to setup your company logo in SAP Fiori launchpad

However while Save and Build, it gets completed almost 75% and shows a error popup with fillowing message:

Failed async accessing "http://<server>:<port>/sap/bc/theming/themes/~client-600/UI5/sap/ca/ui/themes/custom_bluecrystal/library.less" by method "PUT" with result status "404".

Failed async accessing "http://<server>:<port>/sap/bc/theming/themes/~client-600/UI5/sap/ca/ui/themes/custom_bluecrystal/.theming" by method "PUT" with result status "404".

Failed async accessing "http://<server>:<port>/sap/bc/theming/themes/~client-600/UI5/sap/ca/ui/themes/custom_bluecrystal/library.css" by method "PUT" with result status "404".

Can anyone please help me to resolve this issue

Regards,

Faddy