Bug report #9742

2.3 files not backwards compatible with 2.2 (Oracle layers)

Added by Jonathan Moules over 7 years ago. Updated almost 7 years ago.

Category:Data Provider
Affected QGIS version:master Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:No Copied to github as #:18292


I have a qgs file created with master (3b4edb8). It contains a raster, couple of shapefiles and several Oracle layers.

When I try and open it in 2.2.0, I get the "Handle bad layers" dialog.

Surely the file should be backwards compatible? It works fine in master and it's only a couple of weeks since 2.2.0 came out.

Related issues

Related to QGIS Application - Feature request #9636: Oracle provider dialog improvement Open 2014-02-24


#1 Updated by Jürgen Fischer over 7 years ago

  • Status changed from Open to Feedback

What layers don't work? raster, shapefiles or oracle layers? Anything special about any of them? Please provide information that helps reproducing the problem.

#2 Updated by Jonathan Moules over 7 years ago

Sorry should have been clearer although it is in the ticket title.

The Oracle layers are all giving me the "Handle bad layers" dialog. The raster and shapefiles work fine.

#3 Updated by Jürgen Fischer over 7 years ago

not reproducable - anything in the message log?

#4 Updated by Jonathan Moules over 7 years ago

Ah, I think I see what the problem is.
For some reason installing 2.3 (from the weeklies) has made 2.2 unable to find the Oracle Provider.

That's why QGIS isn't able to open those files - because there is no Oracle provider available.

So assuming that's the cause, the bug is that the handler is appearing when really there should be an error telling the user that the Oracle provider needs installing (on that front, probably relate it to #9636).

#5 Updated by Jonathan Moules about 7 years ago

This probably should be changed away from "feedback".

#6 Updated by Jürgen Fischer almost 7 years ago

Is this related to #9634? I don't see how installing the weekly would interfere with the installed released version.

#7 Updated by Jürgen Fischer almost 7 years ago

  • Category set to Data Provider

#8 Updated by Jonathan Moules almost 7 years ago

  • Status changed from Feedback to Closed

No, This was a different issue. Namely that for whatever reason a a file wasn't backward compatible between Master and 2.2 of a few weeks before. Probably worth closing now given the period has passed.

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