Please help me!

Hello, i have just installed unity for free, it says bunch of errors:
1.
An error occurred while resolving packages:
Project has invalid dependencies:
com.unity.package-manager-ui: Package [com.unity.package-manager-ui@2.1.2] cannot be found
Package com.unity.analytics@3.3.2 has invalid dependencies:
com.unity.ugui: Package [com.unity.ugui@1.0.0] cannot be found
Package com.unity.textmeshpro@2.0.0 has invalid dependencies:
com.unity.ugui: Package [com.unity.ugui@1.0.0] cannot be found

A re-import of the project may be required to fix the issue or a manual modification of C:/Users/CyberLuka/IdK/Packages/manifest.json file.

2.Assembly has reference to non-existent assembly ‘Unity.ugui’ (Packages/com.unity.textmeshpro/Scripts/Editor/Unity.TextMeshPro.Editor.asmdef)

Assembly has reference to non-existent assembly ‘Unity.ugui’ (Packages/com.unity.textmeshpro/Tests/Runtime/Unity.TextMeshPro.Tests.asmdef)

4.Assembly has reference to non-existent assembly ‘Unity.ugui’ (Packages/com.unity.textmeshpro/Tests/Editor/Unity.TextMeshPro.Editor.Tests.asmdef)

5.Assembly has reference to non-existent assembly ‘Unity.ugui’ (Packages/com.unity.textmeshpro/Scripts/Runtime/Unity.TextMeshPro.asmdef)

6.Assembly has reference to non-existent assembly ‘Unity.ugui’ (Packages/com.unity.analytics/DataPrivacy/Unity.Analytics.DataPrivacy.asmdef)

AND JUST TO KNOW I NAMED MY FIRST PROJECT IdK SO YOU DONT THINK ITS A JOKE!

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P.S. I just did removed folders and files that had errors, only this error is still here:
An error occurred while resolving packages:
Project has invalid dependencies:
com.unity.package-manager-ui: Package [com.unity.package-manager-ui@2.1.2] cannot be found
Package com.unity.analytics@3.3.2 has invalid dependencies:
com.unity.ugui: Package [com.unity.ugui@1.0.0] cannot be found
Package com.unity.textmeshpro@2.0.0 has invalid dependencies:
com.unity.ugui: Package [com.unity.ugui@1.0.0] cannot be found

A re-import of the project may be required to fix the issue or a manual modification of C:/Users/CyberLuka/IdK/Packages/manifest.json file.

Which Unity version did you install.
Which project did you open / try open.
Did you install any packages form Package Manager?

Sorry if im late, i installed Unity 2018.4.0f1 LTS, I tried to open my first project when i today installed unity (its called IdK Cause i just wanted to try to see how its going to look). I only installed textmestpro not before errors, but i removed some of the errors by removing files that were the problem…

Nah i’ll just reinstall

Some project requires packages to be installed. So you need keep that in mind.

I was having this error, solved it by deleting the android manifest (as it said i may have to modify it manually… i am a noob but i figured it would be rebuilt if i deleted it as unity created the file any way, and as a noob i was unsure how to mod it and i thought when it rebuilt the dependencies since i was not using them it would not include them) and retrying when unity promoted, it got rid of the unused packs and resolved the errors… i was not using any of the packages listed in the error this may help… i know it is late but I hope this saves someone time.

sorry about the ramble but maybe someone with more knowledge of the systems can make sense and explain better

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please need help how did you solve that error? I have it too