This happened after it successfully built, but didn't launch.
Simulator device failed to install the application.
Domain: IXErrorDomain
Code: 2
Failure Reason: Invalid placeholder attributes.
User Info: {
DVTErrorCreationDateKey = "2025-04-06 19:35:47 +0000";
FunctionName = "+[IXPlaceholder _placeholderForBundle:client:withParent:installType:metadata:placeholderType:mayBeDeltaPackage:isFromSerializedPlaceholder:error:]";
| extension Character: Strideable { | |
| public func distance(to other: Character) -> Int { | |
| let selfValue = self.unicodeScalars.first?.value ?? 0 | |
| let otherValue = other.unicodeScalars.first?.value ?? 0 | |
| return Int(otherValue - selfValue) | |
| } | |
| public func advanced(by n: Int) -> Character { | |
| guard let scalar = self.unicodeScalars.first else { | |
| fatalError("Cannot advance an empty character") |
var a: some Equatable = 10
var c: some Equatable = 10
a = c // ERROR: Cannot assign value of type 'some Equatable' (type of 'c') to type 'some Equatable' (type of 'a')You can't pass a different some Equatable to a. The compiler can't guarantee if a and c have identical underlying concrete types. Even though on the screen you can see c is an Int, to the compiler it's just some Equatable. It's NOT some Equatable_But_really_an_Int.
Because it's some Equatable then the compiler would be like, then 'What if c was "ten"? Let's just be safe an not allow it'
| /// start from m * n. Use RECURSION. End at 0 * 0 | |
| /// out of bounds could be the top and left edges. | |
| func lcs(_ t1: [Character], _ t2: [Character]) -> Int { | |
| var cache: [Stage: Int] = [:] | |
| func helper(_ s: Stage) -> Int { | |
| if let cached = cache[s] { | |
| return cached | |
| } | |
| func lcs(_ t1: [Character], _ t2: [Character]) -> Int { | |
| // 1. build and default grid to 0 | |
| let row = Array(repeating: 0, count: t2.count) | |
| var grid = Array(repeating: row, count: t1.count) | |
| func lcs(_ s: Stage) -> Int { | |
| // 3. Exit with a 0 for any point that's beyond the left or bottom edges | |
| guard s.s1 >= 0 && s.s2 >= 0 else { | |
| return 0 | |
| } |
| // Code inside modules can be shared between pages and other source files. | |
| public class BinaryNode { | |
| public var val: Int | |
| public var left: BinaryNode? | |
| public var right: BinaryNode? | |
| public init() { self.val = 0 | |
| self.left = nil | |
| self.right = nil | |
| } |
There are some nuances. Took me a bit to piece it all together.
.gitconfig at your root directory.[includeIf "gitdir:~/something/personal/"]
path = .gitconfig-personal
[includeIf "gitdir:~/elsewhere/work/"]
path = .gitconfig-work
Find all file names that start with 'App'
find path/to/folder -name "App*"
Show the next 3 lines (trailing context) after a match
cat Foo.swift | grep -A 3 methodA
| /* | |
| ATTENTION: I've added two files here. | |
| Steps to find this yourself. | |
| 1. Xcode >> Find >> New Scope >> Set the 'Search the following locations:' to SDK; Then set the other dropdown to 'iOS <whateverVersion>' | |
| 2. Then search for the error code number. | |
| */ |