[Tex/LaTex] TeXnicCenter & Adobe Reader DC in 2020

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This question is similar to this one:
TeXnicCenter & Adobe Reader DC.

How to configure TeXnicCenter to work with Adobe Reader DC?

I have used the solution(s) listed on that linked question many times in the past. However, the solutions no longer work. This may be due to a recent upgrade to Windows 10, or because the Adobe Reader version is wrong.

What I have tried:

  • Checking the location of AcroRd32.exe (it is still in the same folder)
  • Changing the server to acroviewR19. (If I open AcroRd32.exe, the version at the top is 19.021.20061. Before the OS upgrade, I was successfully using acroviewR19 as the server.)
  • Changing the server to acroviewR20. This opens Adobe Acrobat Reader DC (if it is not already open) while TeXnicCenter hangs for about 20 seconds before showing the same error message.
  • Changing all 5 instances of %bm to %tm on the viewer tab of Profiles based on the suggestion here (even though that related to BibTeX, not the output viewer).
  • Setting packages to be automatically installed on-the-fly (as suggested here; this was the setting I had previously when it worked). (i.e. MiKTeX Console > Settings > General tab > "Always install missing packages on-the-fly").

Regardless of what I do, I get the same error message as on the other post:

enter image description here

If I use acroviewR19, I sometimes see this error message first before getting the one above:

There was an error opening this document. This file cannot be found.

I've applied the latest OS updates and restarted my computer.

Best Answer

For people who are facing this problem in 2021, it is necessary to change "acroviewR20" to "acroviewR21" that the problem is solved.

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