Illegal char in setting config path

I have successfully set up the dev server for vault but when I go on to set the config file for vault server using: vault server -config=“Full path of file” , regardless of whatever I do it appends extra ‘/’ to the ones in the path and the file is not found. I see that there are a lot of open discussions on the same issue on github since 2015 but no concrete resolution. This is really hampering my work here.
Please help