project statistics for xcode not working

#PROJECT STATISTICS FOR XCODE NOT WORKING CODE#
#PROJECT STATISTICS FOR XCODE NOT WORKING SIMULATOR#
#PROJECT STATISTICS FOR XCODE NOT WORKING FREE#

Those files are also cached here and reused later. This is the place where Xcode’s build system writes auxiliary files needed for building the app. When I build it for the actual device, Debug-iphoneos subfolder is created.Īnd finally the last folder I’d like to mention: Intermediates.

You can see that I’ve built the app in the Debug configuration targeting iOS simulator.

#PROJECT STATISTICS FOR XCODE NOT WORKING SIMULATOR#

This is the actual file that gets copied and installed to the simulator (or an iOS device). Probably the most important folder inside Derived Data! Here is where your final. If you can help shed some light on this, please comment below or ping me on Twitter. I wasn’t able to find a single piece of information that mentions this folder or file. See what happens when I build the project: Remember that I still haven’t built the project so the Build logs folder is empty. Inside this folder, Xcode stores all kinds of logs divided by domains ( Install, Build, etc.).

#PROJECT STATISTICS FOR XCODE NOT WORKING FREE#

Feel free to comment below or ping me on Twitter if you have more info. I can’t tell you more about how the current format works because I couldn’t find any additional info about the subject. However, Apple is using binary keys and they are not human readable. However, instead of human-readable keys, Apple is using some kind of hashes. That’s not really big of a deal because you can still open and inspect the mdb files. With Xcode 9, Apple changed the way the index data is stored and is now using LMDB. Prior to Xcode 9, the data was stored using SQLite in a human-readable form. This data is used for search, quick navigation and refactoring within the project. Here is where Xcode stores the data gathered during the indexing phase. What’s worth to explicitly mention is that the ModuleCache folder is not project-specific and is shared among all your projects.

More info about this process: Behind the Scenes of the Xcode Build Process. pcm files precompiled with given arguments. The more unique compiler configurations your project uses, the more subfolders with. The name of each subfolder refers to a hash computed from the arguments passed to the compiler. The number of those folders and their names will be most likely different on your machine. You can see two subfolders named AIEKQT3S8ZS7 and 391J0EBN0O3XH there. Thanks to modules, the headers are parsed and compiled just once. It was common that for every single import in the source file, megabytes of additional headers had to be included and parsed by the compiler. Modules were introduced to Clang (the compiler used by Xcode) several years ago, mainly to ensure reasonable and scalable compile times.

#PROJECT STATISTICS FOR XCODE NOT WORKING CODE#

A module is the way how reusable code is organized and shared.

Xcode immediately creates a new Derived Data folder with two subfolders - one named ModuleCache and one with the name of the project followed by some kind of hash.Īs the name suggests, this is where Xcode stores precompiled module files (. Then I created a sample project called DDExample from the single view app template and opened it in Xcode. I completely deleted existing DeriveData folder. Note: DerivedData content varies with the Xcode version. I decided to change that and here are my findings. However, I never really understood what exactly is inside the DerivedData folder. I still clearly remember when my senior told me about this basic iOS dev trick for the first time.Īs years went by, and with more experience gained, I started to understand what kind of errors can be fixed like that. Deleting derived data - a well know trick that comes in handy every time Xcode behaves strangely for no obvious reason.

Project statistics for xcode not working