Home › Forums › NodeXL Installation issues – first time install, moving NodeXL to a new machine and more › Problems Installing NodeXL Pro? › Reply To: Problems Installing NodeXL Pro?
There may be several reasons why this error message shows up. PLease take a look at this page https://www.smrfoundation.org/faq/object-reference-not-set-to-an-instance-of-an-object-what-does-that-mean/.
If this does not help, feel free to request tech support here.