Hello, please someone help me. I haven’t been able to find a solution.
I have been trying to install the editor version 2019.4.31f1 on Unity Hub but after it finishes downloading and gets to the install part it just keeps saying Installation Failed.
I don’t understand why.
Unity Hub v3.1.2
some1 hjelp me please
im having the same issue anyone find a fix
Yep, same issue, I also tried the 4.39 version and got the same error only with the editor part (both times). I already have 2017.4.18 and 2018.4.20. I’m unsure if I’ve ever had 2019 or if VrChat moved forward since the last time I worked on it. (4.31f is vrchat’s official version)
Good news guys, I put in a Bug report and we finally found something that worked.
The second thing is what finally worked although maybe it was multiple things. I tried half a dozen fixes.
Oh yes, and this problem happened on every version pre2020 I got 2019.4.39 working.
Unity dude:
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There’re some other solutions you could try. Some users reported, that installing older versions of Microsoft Visual C++ Redistributables resolved their issue. Even though officially Unity requires 2015 and later versions of MVCR, I’d suggest going to “Latest supported Visual C++ Redistributable downloads | Microsoft Learn” and installing all Microsoft Visual C++ Redistributable packages starting from 2010.
Secondly, there’s also another possible solution that may still apply to Unity Editors in 2019.4 Stream. However, this may potentially introduce some security risks, so I’d suggest trying this option if all other methods would fail. The solution below is provided by a user on Unity Forums: