In UISlider, bar is gone!

The situation in the iOS app development, Slider bar does not appear, was.
What does that knob out firmly, why! ?
Moreover, as anything why not, it works correctly the specified range! ?
In trouble!

Also to examine the cause, we failed to resolve, collecting information on the Internet!
Then, find the information that, when suspicious behavior of the value of nan.
And when you go step-by-step process, was a value nan.
Even temporarily, when the value is nan, I will not be able to see what,,,.

Cause of the crash Android Part1

Let's make an application for Android !
I've been trying, and in that note was the cause hang.

Situation:
1. In Eclipse, from the base project, copy the project When creating an executable file, like it has been overwritten.
2. To change the name of the executable file, trial and error.

Execution:
The moment you start, a warning dialog appears, freeze.

Counterplan:
First, the situation had not run debug in Eclipse, and examine how thought.So, if you search on Google, get the information that can see a log ddms.
Hmm,, it appears a lot of logs, I do not know! I had given up, it seems to be only a means.So, I carefully check the log,,,.
Then, the "missing class!" Check the logs it.Saw looking at the project, the Name of the Service manifest.xml file, I at the x mark! Apparently, when a trial and error to change the executable file name, had failed to refactoring pattern.