Errors from Dev Tutorials

How come I keep receiving the following errors from entering in the Dev Tutorials? I'm making sure to comment out things that I can't exactly change, but some of the ones I've commented out appear to cause the entire build to fail.


Here's at least the most-recent log report from the errors. I just finished "Creating a Navigation Hierarchy", if it at least helps indicate as to how far I am in the dev tutorials.



MacBook Air (M1, 2020)

Posted on Mar 8, 2023 1:22 PM

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5 replies

Mar 8, 2023 7:29 PM in response to IbsinRG

Start with the language document, and with a Swift Hello World program, or similar. That Scrum demo is… complex.


Also start with Playgrounds and not Xcode: Swift Playgrounds - Apple Developer


Playgrounds are intentionally simpler than Xcode. But Playgrounds are very capable and very useful.


As for learning more about the Swift language and syntax, here is a (free) Apple book:


https://books.apple.com/us/book/the-swift-programming-language-swift-5-7/id881256329


Mar 9, 2023 7:46 AM in response to IbsinRG

Here are the (free) Stanford iOS Swift and the Harvard Python courses that were mentioned earlier:

https://cs193p.sites.stanford.edu/

https://pll.harvard.edu/subject/python


For Swift, I’d start by reading through the (free) Apple Swift book, and with Playgrounds app and the Apple Swift intro samples for Playgrounds. Start simple. Then the Stanford course and related. That Apple scrum example is yet more advanced.


The two versions of the Stanford class I “attended” (the older Objective C class, and the newer Swift class) took probably four hours per class, between viewing the class, reading, and programming and then debugging my work. Some classes went faster. Some took more time to understand and to debug.


Learning a new programming language takes an investment to become proficient; from months to years. This learning doesn’t ever end, either. I’m still learning things about some programming languages that I first started programming a very long time ago, and the languages and frameworks are themselves evolving and changing.

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Errors from Dev Tutorials

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