ITBLogs.InfoIOS Error:'Cannot create an NSPersistentStoreCoordinator with a nil model'
I backed to build my first iOS app again. Today, I got this error:'Cannot create an NSPersistentStoreCoordinator with a nil model'.
Actually, that is easy to fix.
Please make this line of code:
Code
NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"[name]" withExtension:@"momd"]; |
The [name] you filled in is same as your model file (.xcdatamodeld).
For example I got a TipRecord.xcdatamodeld then this line should be:
Code
NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"TipRecord" withExtension:@"momd"]; |
The most productive time
I found an interesting point. During few years, I meet a number of programmers in Australia and Hong Kong. The most of them have told the most productive time for them is around 9pm to midnight. The normal office hours are not very suit for them! That is interesting! What do you think about this?
Just Not about Coding
A lot of people believe we only need to learn some programming languages to be a programmer. In the real world, we need to communicate with other human beings, we need to do the documentations, at least we need to write some notes about operations instructions. Thus, we still need to learn a human language!
HOWTO: Find a Physical Path in ASP.Net from URL
In a number of situations, we need to know a Physical Path in a server from URL. For example, we need to upload some photo. Thus, this is a very common task, and is very easy to do in C#
Code
string serverPath = Server.Map("~/Photo"); // e.g. it returns "C:\site\Photo" |
Not just about coding
We are in Information Technology Industry for a few years. We do a lot of coding every day. Most of people believe we only need to know about the programming syntax.
Well, we still need to know about the theories behind that, such as basic computer architectures and software design theories. We need to know all basic stuff, then we can write some good software!