Xcode codesign failed with exit code 1; expired certificates causing ambiguous matches

If you work with Xcode code signing long enough you’ll run into an error like this:

/usr/bin/codesign failed with exit code 1

If you view the build results (Build->Build Results), and expand the error message (there is a little paragraph button on the right-hand side of the line) you may see something like this:

iPhone Developer: Firstname Lastname (hashcode): ambiguous (matches "iPhone Developer: Firstname Lastname (hashcode)" in /Library/Keychains/System.keychain and "iPhone Developer: Firstname Lastname (hashcode)" in /Users/username/Library/Keychains/login.keychain)
Command /usr/bin/codesign failed with exit code 1

You have two certificates, with the same unique identifiers. One is in your login keychain and the other is in your system keychain. The real problem is, you probably have an expired certificate conflicting with your active certificate.
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Getting a larger virtual monitor with a Mac hosted VirtualBox and Ubuntu guest

Ubuntu with 1024x768 screen in VirtualBox
Now that's a respectable 1024x764 Ubuntu view in VirtualBox on my MacBook.

I use VirtualBox on my Mac for “other” operating systems.

I was recently creating a new Ubuntu guest OS for doing some work with PostgreSQL on Linux. I like a GUI, so I was using pgAdmin. Normally I don’t care if the window is 800×600, but when I started using pgAdmin, I couldn’t see all of the window.

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Great week; two iPhone apps in the app store

It has been a great week. Two iPhone apps, which I’ve been working on, went into the app store: AccelGolf: Golf GPS Rangefinder and CU24 SURF ATM finder.

It has been a great week. Two iPhone apps, which I’ve been working on, went into the app store: AccelGolf: Golf GPS Rangefinder and CU24 SURF ATM finder.

I’ve only been working on AccelGolf: Golf GPS Rangefinder for a short time, but I’m having an ever-increasing role in it’s development. It’s an awesome tool for Golfers to track and improve their game. The introductory price of $4.99 is unbeatable, but won’t be available at that price for long! Find out more at AccelGolf. Or check it out in the App Store.

The SURF ATM Finder is an app I developed for a client as my own company, Whirlidoo (LLC is in the works). If you are a member of a surcharge free SURF Alliance Credit Union in Maine, you’ll appreciate this app. SURF ATM Finder is free in the App Store.

Show the UINavigationController Root View Controller in UITabBarController

A method for showing the UINavigationController Root View Controller in UITabBarController using introspection to determine class membership.

When programming on iPhone or iPad, it’s common to have a UITabBarController mixed with UINavigationController.

You will probably find yourself needing to show the Root View Controller of a Navigation Controller when you switch Tabs in the Tab Controller. Continue reading “Show the UINavigationController Root View Controller in UITabBarController”

How do you get MySQL Administrator GUI to work with XAMPP on Mac OS X?

I had trouble getting MySQL GUI Adminstration tools to connect to my XAMPP installed MySQL database server on Mac OS X. This solution may help people who have the same problem and don’t know how to figure it out.

I’m working on a Mac with OS X 10.5.7 and a fresh XAMPP 1.0.1 install. XAMPP gives your OS X a complete Apache, MySQL and Perl/PHP installation to work with. With it, you can develop on your Mac with a complete web server. (Sure, Mac comes with most of this stuff built in, but XAMPP is really nice and allows you to have your Mac web services turned off for security.)

XAMPP also comes with phpMyAdmin for managing your MySQL server through a web page. I find phpMyAdmin to be awesome for most of what I do with a database. Sometimes I need to revert to command-line for large datafiles and stuff, but I’d say 99.9% of the time I can use phpMyAdmin for what I’m doing. I ran into a problem with phpMyAdmin trying to view a database table that was imported from an Excel export. For some reason, the phpMyAdmin page is just plain white – making me think there was some web/parsing/display problem involved. I needed a different way to view the DB. For this kind of thing I hate the command line. (The line wrapping…blech!)

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Use Game Editor to create a cross-platform game for GP2X F-200 and Windows Mobile

I am going to show an example of writing a cross-plaform game for GP2X/GP2X F-200 and Windows Mobile. I’ll test it out on a GP2X F-200, Palm Treo 750W and AT&T 8125 smartphone. It will also be playable on Windows and Linux, too.

goalie trials screenshot
goalie trials screenshot

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Instantiating an iReport Collection parameter from an Array in one line

While working with iReport, I wanted to test my report with a default Collection value for my Hibernate Query.

The HQL is something like this,


SELECT person.fullName as personName
FROM Person person
WHERE person.id in ($P{people})

“Data” from Star Trek, by: JD Hancock

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JUnit Testing JNDI Datasources: Thinking outside of the Container

When it comes to JNDI Datasources, you really need a fast way to test outside of the container without changing all of your configuration just because your testing.

java programming tipsOne of the problems with using a JNDI Datasource is Unit Testing outside of the container. Testing in the container is a pain and it’s slow if you are fixing bugs or just testing to make sure what you have works after a few changes. It’s OK for system tests.

Another option might be to have one set of configuration for the container and one for Unit Testing. An example might be to have two files controlled by your classpath or even worse, one file which you comment/uncomment to get the datasource you need. Then hope you package up the right configuration for the release.

What you really need a fast way to test outside of the container without changing all of your configuration just because your testing. Thankfully, spring provides a nice way to test your application outside of the container. Just bind your resource to a SimpleNamingContext mock and voila!
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