[SailfishDevel] qml PositionSource element gives error: QMetaMethod::invoke: Unable to handle unregistered datatype 'QGeoPositionInfo'

christopher.lamb at thurweb.ch christopher.lamb at thurweb.ch
Sun Jan 12 16:02:46 UTC 2014

Hi All

In an attempt to track down the source of this problem, and possibly  
even solve it, I have created a throwaway demo posted to Github under:


The demo is basically a standard Sailfish new project, with a QML  
PositionSource element added to FirstPage, and the start() method  
called in a Component.onCompleted on that Page.

To actually get into the nitty-gritty of the code where the problem is  
likely to be, I have also copied in C++ code from QtPositioning. I am  
not sure if this identical to the code used in the Sailfish build of  
Positioning, but it is probably close enough. This "in-line"  
PositionSource element is imported by "import PositionSource 5.2"

Switching between the standard import and the in-line import is by  
comment in / out the import statement(s).

Of course, the problem may not be in the code at all, maybe I am  
missing some essential package or plugin on my Jolla ..



Zitat von christopher.lamb at thurweb.ch:

> Hi Alejandro
> My understanding is that although the version is quotes as 5.1, it  
> is actually a "not quite finished" 5.2
> In the target there is a 5.2.0 subdirectory:
> /Users/christopherlamb/SailfishOS/mersdk/targets/SailfishOS-armv7hl/usr/include/qt5/QtPositioning/5.2.0
> import QtPositioning 5.2, import QtPositioning 5.1, and import  
> QtPositioning 5.0 all give me the same error.
> Whereas something like "import QtPositioning 5.7" gives module  
> "QtPositioning version 5.7 is not installed"
> Chris
> Zitat von "Alejandro Exojo" <suy at badopi.org>:
>> El Saturday 11 January 2014, christopher.lamb at thurweb.ch escribió:
>>> import QtPositioning 5.2
>> Isn't 5.1 the newest available?
>> --
>> Alex (a.k.a. suy) | GPG ID 0x0B8B0BC2
>> http://barnacity.net/ | http://disperso.net
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