Xcode 27 Simulator “Incompatible”? Here’s the Fix
Updated to Xcode 27 and suddenly your existing simulator shows as Incompatible or you can’t create the iPhone simulator you were using before? Don’t recreate your project. Check the simulator runtime...
View ArticleWhere Has the iOS Simulator Gone in Xcode 27?
Updated to Xcode 27 and wondering where Simulator.app has gone? It isn’t a broken Xcode installation. Apple has replaced the old standalone Simulator app with Device Hub in Xcode 27. Open the...
View ArticleXcode 27 “iOS Deployment Target” Build Error — Fix
Updated to Xcode 27 and suddenly seeing an error like: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 12.0, but the range of supported deployment target versions is 15.0 to 27.x...
View ArticleDocker Desktop Stuck on “Starting the Docker Engine”? Fix
Docker Desktop stuck on Starting the Docker Engine and never actually starts? If you’re using the WSL2 backend on Windows, try resetting WSL before reinstalling Docker. Quick Fix Quit Docker Desktop...
View ArticleXcode 27 Crashes When Typing? Here’s the Fix
If Xcode 27 crashes as soon as you start typing code, the problem may be its enhanced code completion ranking. Apple has confirmed this as a known issue and there’s a quick workaround. Open Terminal...
View ArticleFix Codex “Ran Out of Room in the Model’s Context Window”
Codex recently stopped halfway through a coding task with: Codex ran out of room in the model's context window The obvious option is to start a completely new thread, but that can lose useful context...
View ArticleFix “Invalid Active Developer Path” on macOS
Updated macOS or Xcode and suddenly Git has stopped working with: xcrun: error: invalid active developer path This usually means the Xcode Command Line Tools path has been broken by the update. The...
View ArticleCodex Burning Through Your Usage? Try This Quick Fix
Codex suddenly burned through my entire 5-hour usage allowance after just a couple of relatively simple changes to an iOS app. That didn’t seem right. I’d previously done far more complicated work in...
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Aqara Roller Shade Driver E1 Stuck With Solid Red Light? Try This
My Aqara Roller Shade Driver E1 suddenly became completely unresponsive. The Up and Down buttons did nothing, Aqara Home couldn’t connect to it and plugging in USB-C just gave me a solid red light....
View ArticleFix Git “Your Local Changes Would Be Overwritten by Merge”
Trying to git pull and getting: Your local changes to the following files would be overwritten by merge Git is stopping the pull to protect changes you haven’t committed yet. Keep Your Changes...
View ArticleFix Xcode “Device Is Unavailable Because It Is Unpaired”
Xcode suddenly showing your iPhone as: Device is unavailable because it is unpaired even though you’ve used the same device for development before? I hit this after Xcode stopped recognising an iPhone...
View ArticleFix Cloudflare D1 “Daily Row Read Limit” Error
Getting this from Cloudflare D1? Your account has exceeded D1's free tier daily row read limit Cloudflare now enforces the D1 Free plan limit of 5 million rows read per day. Once you hit it, queries...
View ArticleDocker Compose Container Won’t Stop? Force It
Ever had docker compose down sit there waiting for a container that just refuses to stop? You can kill the stuck container without restarting Docker or the whole server. Find the Container Run: docker...
View ArticleXcode Stuck on Indexing? Quick Fix
Xcode stuck on Indexing… or starting the indexing process over and over? Before doing anything drastic, clear its build data and let it rebuild the index. Clean Derived Data Quit Xcode completely....
View ArticleDocker Compose Not Picking Up .env Changes? Fix
Changed a value in your .env file but Docker Compose is still using the old one? Restarting the container isn’t always enough. The existing container may still have the environment it was created...
View ArticleFix Xcode “No Profiles for Were Found” Signing Error
Fix Xcode “No Profiles for Were Found” Signing Error If Xcode fails to build with an error like: No profiles for 'com.example.myapp' were found Xcode can’t find a provisioning profile matching your...
View ArticleFix SSH “Permissions Are Too Open” Private Key Error
Fix SSH “Permissions Are Too Open” Private Key Error Trying to connect over SSH and getting: WARNING: UNPROTECTED PRIVATE KEY FILE! followed by: Permissions for 'key.pem' are too open SSH is refusing...
View ArticleFix Docker “Bind: Address Already in Use” / “Port Is Already Allocated”
Fix Docker “Bind: Address Already in Use” / “Port Is Already Allocated” Running docker compose up and getting an error like: Bind for 0.0.0.0:8080 failed: port is already allocated Something else is...
View ArticleFix “Fatal: Detected Dubious Ownership in Repository” in Git
Fix “Fatal: Detected Dubious Ownership in Repository” in Git If Git suddenly refuses to work with a repository and displays: fatal: detected dubious ownership in repository Git has detected that the...
View ArticleDocker.app Is Damaged and Can’t Be Opened on Mac — Fix
Docker.app Is Damaged and Can’t Be Opened on Mac — Fix If macOS suddenly reports “Docker.app is damaged and can’t be opened”, particularly after updating Docker Desktop, you usually don’t need to wipe...
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