<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>Oh, that's simple. In the upper word menu, under
Vector>Geometry Tools> Select Multipart to single part.
Repeat this for all you polygon layers and then your merge should
work (I assume you are trying to merge the layers). <br>
</p>
<br>
<div class="moz-cite-prefix">On 1/16/2018 12:48 PM, David Shi wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1062881281.7375768.1516121324924@mail.yahoo.com">
<meta http-equiv="Context-Type" content="text/html; charset=UTF-8">
<div>
<div id="yui_3_16_0_ym19_1_1516121095642_6199"><span>Hi, Kirk,</span></div>
<div id="yui_3_16_0_ym19_1_1516121095642_6199"><span><br>
</span></div>
<div id="yui_3_16_0_ym19_1_1516121095642_6199"><span>To make it
simple, how to convert all polygons into simple polygons?</span></div>
<div id="yui_3_16_0_ym19_1_1516121095642_6199"><span><br>
</span></div>
<div id="yui_3_16_0_ym19_1_1516121095642_6199"><span>Regards,</span></div>
<div id="yui_3_16_0_ym19_1_1516121095642_6199"><span><br>
</span></div>
<div id="yui_3_16_0_ym19_1_1516121095642_6199"><span>David</span></div>
<div class="qtdSeparateBR"
id="yui_3_16_0_ym19_1_1516121095642_6521"><br>
<br>
</div>
<div class="yahoo_quoted"
id="yui_3_16_0_ym19_1_1516121095642_6283">
<div id="yui_3_16_0_ym19_1_1516121095642_6282">
<div id="yui_3_16_0_ym19_1_1516121095642_6281">
<div dir="ltr" id="yui_3_16_0_ym19_1_1516121095642_6520">
On Tuesday, 16 January 2018, 14:09, Kirk Schmidt
<a class="moz-txt-link-rfc2396E" href="mailto:kirk@nortekresources.com"><kirk@nortekresources.com></a> wrote:<br>
</div>
<br>
<br>
<div class="y_msg_container"
id="yui_3_16_0_ym19_1_1516121095642_6280">
<div id="yiv8993925295">
<div id="yui_3_16_0_ym19_1_1516121095642_6279">
<div id="yui_3_16_0_ym19_1_1516121095642_6278">This
usually occurs when you try to merge features that
are mixed single and multipart lines or polygons.
Simply use vector geometry tools to convert from
one type to another. <br>
</div>
<br>
<div class="yiv8993925295yqt3759455924"
id="yiv8993925295yqt36744">
<div class="yiv8993925295moz-cite-prefix"
id="yui_3_16_0_ym19_1_1516121095642_6546">On
1/16/2018 7:53 AM, David Shi wrote:<br>
</div>
<blockquote type="cite"> </blockquote>
</div>
</div>
<div class="yiv8993925295yqt3759455924"
id="yiv8993925295yqt09989">
<div id="yui_3_16_0_ym19_1_1516121095642_6523">
<div id="yui_3_16_0_ym19_1_1516121095642_6522">
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516103510038_14708">How
to resolving this issue?<br>
</div>
<div class="yiv8993925295qtdSeparateBR"
id="yui_3_16_0_ym19_1_1516121095642_6547"><br>
<br>
</div>
<div class="yiv8993925295yahoo_quoted"
id="yiv8993925295yui_3_16_0_ym19_1_1516103510038_14689">
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516103510038_14688">
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516103510038_14687">
<div class="yiv8993925295y_msg_container"
id="yiv8993925295yui_3_16_0_ym19_1_1516103510038_14736">
<div id="yiv8993925295">
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516103510038_14735">
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516103510038_14734">
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516092840198_16102"><br>
</div>
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516092840198_16102">Regards,</div>
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516092840198_16102"><br>
</div>
<div
id="yiv8993925295yui_3_16_0_ym19_1_1516092840198_16102">David</div>
</div>
</div>
</div>
<br>
<br>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset
class="yiv8993925295mimeAttachmentHeader"></fieldset>
<br>
<pre>_______________________________________________
Qgis-user mailing list
<a rel="nofollow" shape="rect" class="yiv8993925295moz-txt-link-abbreviated" target="_blank" href="mailto:Qgis-user@lists.osgeo.org" moz-do-not-send="true">Qgis-user@lists.osgeo.org</a>
List info: <a rel="nofollow" shape="rect" class="yiv8993925295moz-txt-link-freetext" target="_blank" href="https://lists.osgeo.org/mailman/listinfo/qgis-user" moz-do-not-send="true">https://lists.osgeo.org/mailman/listinfo/qgis-user</a>
Unsubscribe: <a rel="nofollow" shape="rect" class="yiv8993925295moz-txt-link-freetext" target="_blank" href="https://lists.osgeo.org/mailman/listinfo/qgis-user" moz-do-not-send="true">https://lists.osgeo.org/mailman/listinfo/qgis-user</a></pre>
<br>
<pre class="yiv8993925295moz-signature">--
Kirk Schmidt, MScF, BScF, RPF
General Manager
Nortek Resource Solutions Inc.
RR # 1
Thorburn, NS
B0K 1W0
Tel (902) 922.3607
Email: <a rel="nofollow" shape="rect" class="yiv8993925295moz-txt-link-abbreviated" target="_blank" href="mailto:kirk@nortekresources.com" moz-do-not-send="true">kirk@nortekresources.com</a>
Web: <a rel="nofollow" shape="rect" class="yiv8993925295moz-txt-link-abbreviated" target="_blank" href="http://www.nortekreources.com/" moz-do-not-send="true">www.nortekreources.com</a></pre>
</div>
</div>
</div>
<div class="yqt3759455924" id="yqt75830">_______________________________________________<br>
Qgis-user mailing list<br>
<a shape="rect"
href="mailto:Qgis-user@lists.osgeo.org"
moz-do-not-send="true">Qgis-user@lists.osgeo.org</a><br>
List info: <a shape="rect"
href="https://lists.osgeo.org/mailman/listinfo/qgis-user"
target="_blank" moz-do-not-send="true">https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
Unsubscribe: <a shape="rect"
href="https://lists.osgeo.org/mailman/listinfo/qgis-user"
target="_blank" moz-do-not-send="true">https://lists.osgeo.org/mailman/listinfo/qgis-user</a></div>
<br>
<br>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Kirk Schmidt, MScF, BScF, RPF
General Manager
Nortek Resource Solutions Inc.
RR # 1
Thorburn, NS
B0K 1W0
Tel (902) 922.3607
Email: <a class="moz-txt-link-abbreviated" href="mailto:kirk@nortekresources.com">kirk@nortekresources.com</a>
Web: <a class="moz-txt-link-abbreviated" href="http://www.nortekreources.com">www.nortekreources.com</a></pre>
</body>
</html>