How can I fix these problems which I believe was out of my power?,How do I fix these errors that isn't related to my code or anything I did in general?

I woke up early hoping to get some work done, but I saw these errors: To elaborate further, I have saved my scene and it was perfectly okay. No errors, no warnings, nothing. My "game" was working as perfectly as I wanted at that point of time. I don't really know how and what this error is about, but according to the error messages, it's related to Library Asset Packages. Some of the error codes include CS0115, CS0246. "AssetPackages/unity2d... hass no meta file, but it's an immutable folder. Asset will be ignored." Please help me guys! Thank you for helping. ![alt text][1] [1]: /storage/temp/157499-screenshot-45.png ,I woke up early hoping to get some work done, but I saw these errors: [1]: /storage/temp/157497-screenshot-45.png To elaborate further, I have saved my scene and it was perfectly okay. No errors, no warnings, nothing. My "game" was working as perfectly as I wanted at that point of time. I don't really know how and what this error is about, but according to the error messages, it's related to Library Asset Packages. Some of the error codes include CS0115, CS0246. "AssetPackages/unity2d... hass no meta file, but it's an immutable folder. Asset will be ignored." Please help me guys! Thank you for helping.