I think I notice 2 things that are possibly at issue.

1. The terminal is trying to tell you about a missing part of your command line.
2. Second, there are spaces following some slashes in your command,
which can/will cause the shell to think you are requesting more than 1 file.

If I'm correct, you're trying to edit the file "Setup.bash", yes?

If so, you'd insert the name of an editor to use - following the "sudo" and
coming before the path of the file you wish to edit.

using your command as an example, --- and pretending you want to use "gedit"
- and removing the spaces.

klaus@klaus- desktop:~ $ sudo gedit '/home/klaus/scisoft/bin/Setup.bash'