Can this question be closed as a duplicate, or should it be answered?
I'm pretty sure we have something about how changing configuration files or scripts that set environment variables typically only affects new logins, but I'm not sure if it will be obvious to the OP (and people who find the question by searching) that it applies to this specific situation.
Actually, their question could be interpreted as saying they did try that. I've commented to request clarification.
This is weird. The review says the Community bot approved the post without anyone else reviewing it. Normally, for an Edit review, it shows the Community bot's approval and also the reviewer's own edit.
What actually happened was that I clicked Edit, made more changes, submitted them, was told that I couldn't submit the edit, tried again, was told my edit didn't change the post at all, checked and found that it had been successfully applied, and checked the review item and it only showed Community as approving it.
I believe that this isn't an answer and being a CW answer serves no benefit. But the answerer argues that they made a CW answer so that more information can be added to it (see comments).
Also I think the question is too-broad since it deals with 5 different errors. If it is to be closed as dupe, it would need 5 different questions. I believe that all general errors are now covered in ~9 years on the site.
@Kulfy Yeah, that's NAA. The possibility that it could be edited into an answer in the future doesn't make it one now (or at any point since it was posted).
@karel I'm not sure if it's a dupe. I'd guess OP downloaded the bundle file which by default goes in ~/Downloads but they are running chmod while being in ~/ and thus the error
Do we have something for that? like how to use chmod?
@Kulfy I figured the OP was using the wrong version number, because the filename in the question is the same as the filename in the linked guide which was created much earlier.
@Kulfy But I believe we do have something for how to refer to files that are in directories like the user's Downloads, Desktop, Documents, etc., directories.
@Kulfy I didn't close vote that question because it is a good signpost to block so many nth duplicate questions, but I did close vote the no-repro questions linked to in my latest comments.