Copying assembly from 'Temp/Assembly-CSharp.dll' to 'Library/ScriptAssemblies/Assembly-CSharp.dll' failed UNITY3D error

by Varun Kapoor   Last Updated July 12, 2019 05:26 AM

The image shows the error in the editor.This error is appearing in a completely new project, before I have made any changes. This is the error I keep receiving in the Unity Editor. I have updated Unity to the latest version - 2019.1.9.f1. I am unable to use Unity because of this error. Based on other threads talking about this topic, I have tried their suggestions like :

  1. "Reimporting all scripts".
  2. Clearing the "Temp" folder.
  3. "Reset packages to default" option.
  4. Made exceptions in the antivirus. Also tried by removing the antivirus completely.
  5. Made changes to the project and saved it. Then reopened the project, but the error was still there.

All these suggestions could not help me solve the error. I am unable to build anything. My projects have come to a standstill.

ALSO, I had been receiving the same error for textmeshpro also. I resolved that by uninstalling the package. It's related, but I can't find the issue.

I am a bit desperate, and would appreciate any help in this matter.

Tags : unity3d

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