I have got this build error and I can not figure out how to fix
Code:
[LOG] Fashion build starting for /Users/xxxx/Documents/htdocs/sassbackup/build/temp/production/sassbackup/slicer-temp/sassbackup-example.scss
[LOG] Build error for /Users/xxxx/Documents/htdocs/sassbackup/build/temp/production/sassbackup/slicer-temp/sassbackup-example.scss
[LOG] Fashion Error : No value supplied for argument : $shadow-color :
[ERR] 
[ERR] BUILD FAILED
[ERR] com.sencha.exceptions.ExBuild: Fashion build exited with code : 1
[ERR] 	at sun.reflect
[ERR] .NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[ERR] 
[ERR] Total time: 9 seconds
[ERR] /Users/xxxx/bin/Sencha/Cmd/7.2.0.84/plugin.xml:333: The following error occurred while executing this line:


/Users/xxxx/bin/Sencha/Cmd/7.2.0.84/ant/build/app/build-impl.xml:341: The following error occurred while executing this line:


/Users/xxxx/bin/Sencha/Cmd/7.2.0.84/ant/build/app/slice-impl.xml:378: The following error occurred while executing this line:


/Users/xxxx/bin/Sencha/Cmd/7.2.0.84/ant/build/app/slice-impl.xml:379: The following error occurred while executing this line:


/Users/xxxx/bin/Sencha/Cmd/7.2.0.84/ant/build/app/slice-impl.xml:107: com.sencha.exceptions.ExBuild: Fashion build exited with code : 1
I have added $shadow-color: dynamic(rgba(0, 0, 0, 0.4)); to every sass file I can find but it still won't build

Thanks in advance
harry