How can I deploy an iPhone application from Xcode to a real iPhone device?

How can I deploy an iPhone application from Xcode to real iPhone device without having a US$99 Apple certificate?

Is it possible to target older iOS versions when using Xcode 4.2 and iOS 5 SDK?

I just recently downloaded the Xcode 4.2 with iOS 5 SDK package and I immediately noticed that I am unable to use my iPhone 3Gs with iOS 4.2.1 for debugging. I am only able to debug and test on my iphone 4 with iOS 5 installed.

Install xCode 3.2.3 w/ iPhone SDK 4, get "Base SDK missing', can"t see other SDKs

I created this community wiki to bind together a number of other Q/A's I've seen here on SO. If you're here, you've probably installed the final version of Xcode 3.2.3 with iPhone SDK 4 ( download link , reg reqd), and then encountered one or both of these problems:

Version vs Build in XCode 4

I have an app that I developed with XCode 3 and recently started editing with XCode 4. In the Target Summary I have the iOS Application Target form with fields: Identifier, Version, Build, Devices, and Deployment target. The Version field is blank and the Build field is 3.4.0 (which matches the version of the app from when I was still editing with XCode 3).

Xcode strange warning - Multiple build commands for output file

I am getting an error like this,

[WARN]Warning: Multiple build commands for output file /Developer/B/Be/build/Release-iphonesimulator/BB.app/no.png

Build fat static library (device + simulator) using Xcode and SDK 4+

It appears that we can - theoretically - build a single static library that includes both simulator and iPhone and iPad.

XCode 4 says "finished running <my app>' on the targeted device &mdash; Nothing happens

The app neither installs nor runs on my device. All provisioning profiles are up to date. I've already tried deleting and re-installing them.

Warning iPhone apps should include an armv6 architecture even with build config set

It's been awhile since I've had to adjust project build settings. After upgrading to a recent SDK I'm having trouble building my ad hoc distribution configuration.

XCode/Simulator: How to run older iOS version?

I'm thinking of upgrading to iOS SDK 4.2. But what I'm wondering is if I'll still be able to run the simulator as iOS 3.2. This is because I'm creating iAds for iPad but I still want to check if my program will run with iOS 3.2.

Is there a way to simulate multiple iphones using xcode/iphone sim?

I'm planning out a game that requires multiple users and I was wondering if there's a way to fire up multiple instances of the iPhone Simulator. I didn't see anything in menus or in Google search results, but I just wanted to make sure I wasn't missing anything.

Include a resource directory hierarchy into app bundle

I have a directory structure (multiple levels deep) of resources, that I would like to include into the app bundle. Is this possible without creating a Copy Files phase for each directory in the hierarchy individually?

How to decrease build times / speed up compile time in XCode?

What strategies can be used in general to decrease build times for any XCode project? I'm mostly interested in XCode specific strategies.

How to check if a file exists in Documents folder?

I have an application with In-App Purchase, that when the user buy something, download one html file into the Documents folder of my app.

Designing the iPhone interface in a nib or in code?

I've been pondering over this question for a while now...

On the one hand, Interface Builder offers a really easy way to design the interface and wire the elements up with objects in code.

Xcode "CodeSign error: code signing is required"

I've been working on an iPhone project with iOS 4.0. I just downloaded Xcode 3.2.4 with iOS SDK 4.1 so that I can work with the updated iOS. Upon opening the project in the udpated Xcode, I found that the target read 'Base SDK Missing'. I fixed that by following the instructions here .

iOS Multi-Tasking Track GPS Location

I was just wondering if it was possible to make an iOS app that would track your location via GPS while it was in the background.

Program received signal: “0”. Data Formatters temporarily unavailable

I'm working on an iPad app that downloads a CSV file from the web and parses the file into a NSMutableArray. (I'm using the code from http://www.macresearch.org/cocoa-scientists-part-xxvi-parsing-csv-data suggested in another post).

how to create fixed space and flexible space bar button items programmatically

i want to create bar button items programmatically to place these fixed space buttons between buttons....

iPhone: Create a reusable component (control) that has some Interface Builder pieces and some code

I want to create a reusable component (a custom control) for the iPhone. It consists of several standard controls prearranged on a View, and then some associated code. My goals are:

Asihttprequest 61 errors [closed]

it should be a simple problem. im using the ASIhttprequest in many project but sins 1 week each new project i'm trying to add the ASIhttprequest classes i got the following 61 error before using classes just when i'm trying to import them.