I received some errors after importing to unity 5.5

Unity Engine
1

After I imported to unity 5.5 i got this errors :

error CS1704: An assembly with the same name UnityEngine.UI' has already been imported. Consider removing one of the references or sign the assembly C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/GUISystem/UnityEngine.UI.dll (Location of the symbol related to previous error) C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/GUISystem/Standalone/UnityEngine.UI.dll (Location of the symbol related to previous error) error CS1704: An assembly with the same name UnityEngine.Networking’ has already been imported. Consider removing one of the references or sign the assembly
C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/Networking/UnityEngine.Networking.dll (Location of the symbol related to previous error)
C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/Networking/Standalone/UnityEngine.Networking.dll (Location of the symbol related to previous error)
error CS1704: An assembly with the same name `UnityEngine.HoloLens’ has already been imported. Consider removing one of the references or sign the assembly
C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/UnityHoloLens/Runtime/UnityEngine.HoloLens.dll (Location of the symbol related to previous error)
C:/Program Files/Unity/Editor/Data/UnityExtensions/Unity/UnityHoloLens/RuntimeEditor/UnityEngine.HoloLens.dll (Location of the symbol related to previous error)

Compilation failed: 3 error(s), 0 warnings

How can i fix this ?

2

You have duplicated assemblies. If you have version control, force get latest. If not, search for the assemblies above under your project and remove duplicates.

3

How can you spot the already existing assembly. I’m a beginner. Help me please.
I have the same issue too. But cannot find the older assembly so that I can delete that.

4

In the stack trace for your error, it gives you the file path to the assemblies. Remove one set of duplicates for each assembly. You can do so on a Mac by opening a finder window, pressing Command + Alt + G. Then, paste the file directory into the window that appears. On a PC, just paste it directly into the file browser address bar. Easy peasy. :slight_smile:

5

tsibiski, thank you, this help a lot.