xcdatamodel Contents Disappears

Question

I've had this happen a few times.

The contents of proj.xcdatamodeld/proj.xcdatamodel/ randomly disappear off my hard drive. However, Xcode will open the model file just fine.

Sometimes all three files disappear (elements, layout, contents). Other times only a subset of the files disappear.

I've done a filesystem check with Disk Utility which detected no problems.

I've checked that all the build settings etc. for the xcdatamodel are correct.

score 1 · Answer 1 · answered Sep 27 '11 at 21:13

1

Are you perhaps confusing *.xcdatamodel and *.xcdatamodeld?

What's the problem if everything works?

answered Sep 27 '11 at 21:13

Mundi

Contents of proj.xcdatamodeld/proj.xcdatamodel/ But it doesn't work. When I load it to the device the model file does not exist. – lorean Sep 27 '11 at 21:33
Perhaps any source control software (git, subversion) getting in the way? – Mundi Sep 27 '11 at 21:58
Hm I suppose it's possible. I'll do some research. – lorean Sep 27 '11 at 22:53

lorean · Accepted Answer · 2011-10-03T22:11:29.673

1

I believe I've figured out what the problem is.

The core data file is incompatible across Snow Leopard Xcode 4.0 and Lion Xcode 4.1.

Edit: You can fix this problem by clicking on .xcdatamodel, and in the right-hand panel under "Tools Version" minimum set it to "Xcode 3.2".

edited Oct 03 '11 at 22:11

answered Oct 03 '11 at 21:41

lorean

2 Answers2