Cannot update a string list that is currently exported

we are automating our process. What I want is to pull in updated source files and then through scripting do a create/update of source files. Then create/update of target files and then generate targets. This is so that we can provide Language Pack Installers with each build. I am getting this error because I have bundles some up for translation. What I don't understand is why I can manually do all these steps but when I try to do it through command line using \batch I am getting this error. 

Am I using the wrong option? 

Tim