This might be because I have multiple instances of Slicer running. I cannot close them at the moment, will update if confirmed.

I was able to import and load this data on my machine so maybe it si something to do with you having two instances running. There is another bug on that topic, so we can mark this as duplicate if so.

I'd like to figure out the exact circumstances that lead to the crash though, since I haven't ever been able to replicate it on my machine with multiple instances running.

I have the crash consistently with only one instance of Slicer running, r22257, here's the dataset: https://www.dropbox.com/s/12n4kts4icseagr/ProstatePhantom_MR.tgz

Processing /Users/fedorov/ImageData/MR-US/ProstatePhantom/MR/ANDRIY_PROSTATE_TEST.MR.INTERVENTIONAL_PROSTATE.2.1.20130501.075723.y5v654.dcm
QSqlQuery::value: not positioned on a valid record
QSqlQuery::value: not positioned on a valid record
inserting filePath: "/Users/fedorov/ImageData/MR-US/ProstatePhantom/MR/ANDRIY_PROSTATE_TEST.MR.INTERVENTIONAL_PROSTATE.2.1.20130501.075723.y5v654.dcm"
database filename for "1.3.12.2.1107.5.2.36.40481.2013050108070063028606399" is empty - we should insert on top of it
This looks like a different patient from last insert: "AMIGO"
Found patient in the database as UId: 2
Going to insert this instance with dbPatientID: 2
Used existing study: "1.3.12.2.1107.5.2.36.40481.30000013042912083307800000007"
Statement: SELECT * FROM Series WHERE SeriesInstanceUID = ?
Used existing series: "1.3.12.2.1107.5.2.36.40481.2013050108065967063706343.0.0.0"
Could not load "/Users/fedorov/Downloads/ASTA_and_RESOLVE/20120501-2/SCANS/2/DICOM/ANDRIY_PROSTATE_TEST.MR.INTERVENTIONAL_PROSTATE.2.1.20130501.075723.y5v654.dcm"
DCMTK says: No such file or directory
Qt has caught an exception thrown from an event handler. Throwing
exceptions from an event handler is not supported in Qt. You must
reimplement QApplication::notify() and catch all exceptions there.

error: [/Users/fedorov/github/Slicer-Superbuild-Release-ITK4/Slicer-build/bin/Slicer.app/Contents/MacOS/./Slicer] exit abnormally - Report the problem.

I tried this on a developer build and it did not crash (see attached image).

Was this done on your build? I wonder if it works on the nightly.

We'll need to try debugging on your machine if possible.

yes: can crash the nightly!

The crash seems to happen for the following scenario:

1) study is imported into DICOM db, images are not copied to the import directory
2) image files are deleted from the disk location
3) the same study is imported again - DICOM module complains about the file missing, pointing to the old file location, which does no longer exist

Better exception handling added in r22273

The underlying issue that causes the exception to be thrown is reported here:

https://github.com/commontk/CTK/issues/357

This time, I get the exception message in the screenshot attached. I assume this is expected behavior pending CTK issue resolution, right?

If so, let's keep this bug open until the underlying CTK issue is resolved?

Steve: there seems to be a side-effect of fixing that issue. The popup box telling how many patients/studies were imported is not focal and is hidden behind the directory selection dialog window. Or maybe that directory selection dialog should be closed after the directory is selected?

First time it happened, I didn't realize what actually happened and had to kill Slicer to regain control.

Has this recurred? I could not reproduce it.

Nope, can't reproduce that modal window issue.

Changed severity from crash => minor since Slicer doesn't crash anymore. See 0001832

Andrey - can we close this issue now?