Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Please help us help you. Instead of saying " I have tried all the other solutions on previous forums but to no avail." please tell us specifically what you have tried and what happened.
Reference: Suggestions for asking a question on help forums:
http://support.microsoft.com/kb/555375
Reference: How to Ask a Question in the Newsgroups or Forums: http://www.officeforlawyers.com/howask.htm
Reference: How to ask an effective question: http://answers.microsoft.com/en-us/windows/wiki/windows_10-update/how-to-ask-an-effective-question/18584631-7f2b-4f01-88f5-f6660a5943c3
DavidF
{edit} you might find an answer in this thread: https://answers.microsoft.com/en-us/msoffice/forum/msoffice_publish-mso_win10-mso_2016/publisher-cannot-launch-or-communicate-with-the/f4a158b9-52e4-4a61-a502-19bd0dbd5e6d