Example project opens with compilation errors

[indukurimkv]

I am using the unity version listed in ProjectVersion.txt(2020.3.11f1) to open the example project; however, the project opens with compilation errors and prompts to enter safe mode. A screenshot of the message is attached:

When entering the project in safe mode, I see the following error messages in the console(along with various warnings):

To Reproduce

• Clone this repository on Ubuntu 24.04
• Use Unity 2020.3.11f1 to open the example project Nav2SLAMExampleProject
• Project should open with compilation errors

Expected Behaviour
The project should open without any compilation errors.

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It looks like the error messages in the second image have no text, so I am confused on how to resolve them.

It seems to me that this project URP, so I tried creating a new blank project using the same Unity version(2020.3.11f1). I faced the same issue where it opened the blank project with compilation errors(these errors were also like in the image above with no text). It seems to me that Unity no longer supports URP in this version of the editor, but this project still depends on it. Any help in resolving this issue would be apprecieated!

[indukurimkv]

It seems that the issue is with the OS. I tried this in windows, and it seems to open the project without any compilation errors.

[Om-Kulkarni]

I was able to fix this issue by downgrading the libSSL 1.1
Follow this stackoverflow link: https://stackoverflow.com/questions/72108697/when-i-open-unity-and-make-something-project-then-the-error-is-coming-that-no?newreg=61cff5f215524355a65f7ad99365fb98