Hi Janneke<div><br></div><div>If I'm not mistaking, the csv files are read-only in Qgis. So I guess it's not a bug</div><div><br></div><div>I just tested here and all I can do is to add a virtual field to the csv, but not actually write in the file.</div><div><br></div><div>Cheers</div><div><br></div><div>Stéphane</div><div><br><br>Le lundi 29 mai 2017, Janneke van Dijk <<a href="mailto:janneke.qgis@gmail.com">janneke.qgis@gmail.com</a>> a écrit :<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
Dear all,<br>
<br>
Using Qgis 2.18.9 on Windows (OSGeo4W64) I'm trying to import a .csv
file and adding a text field. This is what I do:<br>
1. add the .csv using add vector layer<br>
2. open attribute table then use the field calculator<br>
3. add text field, OK<br>
4. toggle editing, save edits when asked.<br>
I then get the following error messages:<br>
<br>
Could not commit changes to layer test_fieldcalculator1
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><br>
</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">Errors:
ERROR: 1 new attribute(s) not added</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> SUCCESS:
1 attribute value(s) changed.</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> Provider
errors:</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> OGR error
creating field txt: </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> Feature 1
for attribute update not found.</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> OGR error
syncing to disk: <br>
</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><br>
</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">The c<span style="font-family:'arial,sans-serif';color:#000000">apabilities
of this layer show:<br>
</span></p>
<p style="margin-top:12px;margin-bottom:12px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'arial,sans-serif';color:#000000">Add
Features, Delete Features, Change Attribute Values, Add
Attributes, Delete Attributes, Rename Attributes, Change
Geometries, Curved Geometries</span></p>
<p style="margin-top:12px;margin-bottom:12px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'arial,sans-serif';color:#000000">which
makes me think it should be possible to add attributes to this
layer. Is this a bug or am I missing something? If a bug, is it
in OGR or QGIS?<br>
</span></p>
<p style="margin-top:12px;margin-bottom:12px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'arial,sans-serif';color:#000000"><br>
</span></p>
<p style="margin-top:12px;margin-bottom:12px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'arial,sans-serif';color:#000000">Thanks
for any insight,</span></p>
<p style="margin-top:12px;margin-bottom:12px;margin-left:0px;margin-right:0px;text-indent:0px"><span style="font-family:'arial,sans-serif';color:#000000">Janneke<br>
</span></p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"><br>
</p>
</div>
</blockquote></div><br><br>-- <br><div dir="ltr"><div><font face="arial, helvetica, sans-serif" size="2">Stéphane Henriod</font></div><div><font face="arial, helvetica, sans-serif" size="2">CIM-Expert for GIS and Green Economy Statistics</font></div><div><font face="arial, helvetica, sans-serif" size="2"><br></font></div><div><font face="arial, helvetica, sans-serif" size="2">Национальный статистический комитет Кыргызской Республики</font></div><div><font face="arial, helvetica, sans-serif" size="2">Кыргыз Республикасынын Улуттук статистика комитети</font></div><div><font face="arial, helvetica, sans-serif" size="2">National Statistical Committee of the Kyrgyz Republic</font></div><div><font face="arial, helvetica, sans-serif" size="2"><br></font></div><div><font face="arial, helvetica, sans-serif" size="2">374 Фрунзе ул. / Frunze str.</font></div><div><font face="arial, helvetica, sans-serif" size="2">720033 Бишкек / Bishkek</font></div><div><font face="arial, helvetica, sans-serif" size="2"><br></font></div><div><font face="arial, helvetica, sans-serif" size="2">T +996 778 46 99 02 (KG)</font></div><div><font face="arial, helvetica, sans-serif" size="2">T +49 176 280 11 050 (DE)</font></div><div><font face="arial, helvetica, sans-serif" size="2">E <a href="mailto:s@henriod.info" target="_blank">s@henriod.info</a></font></div><div><font face="arial, helvetica, sans-serif" size="2">W <a href="http://www.stat.kg" target="_blank">http://www.stat.kg</a></font></div><div><font face="arial, helvetica, sans-serif" size="2">W3W: <a href="https://map.what3words.com/nightfall.into.bucket" target="_blank">nightfall.into.bucket</a> // <a href="https://map.what3words.com/запас.союз.дружный" target="_blank">запас.союз.дружный</a></font></div></div><br>