Search Issue Tracker
Fixed
Votes
10
Found in
2018.3.0f2
Issue ID
1110751
Regression
Yes
Packages fail to compile and show Package Manager because of missing .NET Core prerequisites
How to reproduce:
1. Open a new project with 2018.2 version
2. Open the same project with 2018.3.0f2
3. Try to open the Package Manager Window
Expected result: Package Manager is under Window tab
Actual result: Package Manager does not exist under Window tab
Reproduced with: 2018.3.0f2
If you look in the editor logs, you'll notice this error message for all packages:
Failed to load the dll from [?P], HRESULT: 0x80070057
The library hostfxr.dll was found, but loading it from C:\Program Files\Unity Editors\2018.3.0f2\Editor\Data\Tools\Roslyn\hostfxr.dll failed
- Installing .NET Core prerequisites might help resolve this problem.
http://go.microsoft.com/fwlink/?LinkID=798306&clcid=0x409
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- Select Preset "None" icon changes after switching tabs
- [Android] Crash when using xxHash3 and targeting the ARMv7 Architecture with IL2CPP Scripting Backend
- GameObject reference in a Script Component becomes missing when unpacking a variant of another Prefab variant
- Project Settings vertical separator position is not synchronized with the mouse position when dragging it horizontally
- Crash on PhysicsDebugDraw::SelectFiltering::Update when entering play mode with Physics Debug window docked and unfocused
Joyedele
Aug 18, 2021 19:36
I went to the link but it is telling me that the download is no longer available.
What should i do?
Charles_Beauchemin
Apr 12, 2019 18:25
@DR-SEUSS: The Package Manager UI was introduced in 2018.1. It will never appear on 5.6.
Dr-Seuss
Mar 13, 2019 05:11
I have this problem in unity version 5.6.3p2, which is currently the most up-to date version of unity. I have reinstalled unity, as well as installing Visual studio with the .net cross-platform development framework. I also updated the .net core SDK to 2.2, and still the package manager does not appear, in either pre-existing projects, or a new test project I created in this version of unity.
mkderoy
Jan 15, 2019 15:48
If you experience this error make sure you have the following windows update installed
https://support.microsoft.com/en-us/help/2533623/microsoft-security-advisory-insecure-library-loading-could-allow-remot