New error with custom icon library

Ignition
,
1

I'm getting an error with my custom icon library. This is a new behavior, I've been using it previously until now. I'm not sure when it changed. I went to change an icon and get an error in the output console for every icon in that library. The other libraries work fine.

This is the error I'm getting:

[SwingWorker-pool-1-thread-1] WARN Perspective.IconPicker -- Error processing icon 'custom/truck_outline'
javax.xml.transform.TransformerException: java.lang.RuntimeException: Namespace for prefix 'ns0' has not been declared.
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(Unknown Source)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(Unknown Source)
	at com.inductiveautomation.perspective.designer.workspace.propertyeditor.IconPicker$DownloadAndRenderSprites.lambda$processIconLibrary$2(IconPicker.java:249)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
	at java.base/java.util.stream.IntPipeline$1$1.accept(Unknown Source)
	at java.base/java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Unknown Source)
	at java.base/java.util.Spliterator$OfInt.forEachRemaining(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline.forEach(Unknown Source)
	at com.inductiveautomation.perspective.designer.workspace.propertyeditor.IconPicker$DownloadAndRenderSprites.processIconLibrary(IconPicker.java:225)
	at com.inductiveautomation.perspective.designer.workspace.propertyeditor.IconPicker$DownloadAndRenderSprites.doInBackground(IconPicker.java:198)
	at com.inductiveautomation.perspective.designer.workspace.propertyeditor.IconPicker$DownloadAndRenderSprites.doInBackground(IconPicker.java:158)
	at java.desktop/javax.swing.SwingWorker$1.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.desktop/javax.swing.SwingWorker.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Namespace for prefix 'ns0' has not been declared.
	at java.xml/com.sun.org.apache.xml.internal.serializer.SerializerBase.getNamespaceURI(Unknown Source)
	at java.xml/com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.closeStartTag(Unknown Source)
	at java.xml/com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.characters(Unknown Source)
	at java.xml/com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.characters(Unknown Source)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(Unknown Source)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(Unknown Source)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(Unknown Source)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(Unknown Source)
	... 26 common frames omitted

Of that, I think this is the important part:

Namespace for prefix 'ns0' has not been declared.

2

You're right about the important part. Are you able the share the SVGs you're using? It seems relatively straightforward - the icon rendering parser is blowing up because the SVG is declaring a "namespace" is used but (according to the icon parser, at least) is not defined.

3

I removed the library then re-added them. All seems to be good, now.

This is the contents of the custom library.

<?xml version='1.0' encoding='utf-8'?>
<svg xmlns="http://www.w3.org/2000/svg">
	<defs>
		<style>
			.icon { display: none }
			.icon:target { display: inline }
		</style>
	</defs>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="truck_outline">
			<path d="M18 18.5C18.83 18.5 19.5 17.83 19.5 17C19.5 16.17 18.83 15.5 18 15.5C17.17 15.5 16.5 16.17 16.5 17C16.5 17.83 17.17 18.5 18 18.5M19.5 9.5H17V12H21.46L19.5 9.5M6 18.5C6.83 18.5 7.5 17.83 7.5 17C7.5 16.17 6.83 15.5 6 15.5C5.17 15.5 4.5 16.17 4.5 17C4.5 17.83 5.17 18.5 6 18.5M20 8L23 12V17H21C21 18.66 19.66 20 18 20C16.34 20 15 18.66 15 17H9C9 18.66 7.66 20 6 20C4.34 20 3 18.66 3 17H1V6C1 4.89 1.89 4 3 4H17V8H20M3 6V15H3.76C4.31 14.39 5.11 14 6 14C6.89 14 7.69 14.39 8.24 15H15V6H3Z" />
		</g>
	</svg>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="wrench">
			<path d="M22.7,19L13.6,9.9C14.5,7.6 14,4.9 12.1,3C10.1,1 7.1,0.6 4.7,1.7L9,6L6,9L1.6,4.7C0.4,7.1 0.9,10.1 2.9,12.1C4.8,14 7.5,14.5 9.8,13.6L18.9,22.7C19.3,23.1 19.9,23.1 20.3,22.7L22.6,20.4C23.1,20 23.1,19.3 22.7,19Z" />
		</g>
	</svg>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="scale">
			<path d="M8.46,15.06L7.05,16.47L5.68,15.1C4.82,16.21 4.24,17.54 4.06,19H6V21H2V20C2,15.16 5.44,11.13 10,10.2V8.2L2,5V3H22V5L14,8.2V10.2C18.56,11.13 22,15.16 22,20V21H18V19H19.94C19.76,17.54 19.18,16.21 18.32,15.1L16.95,16.47L15.54,15.06L16.91,13.68C15.8,12.82 14.46,12.24 13,12.06V14H11V12.06C9.54,12.24 8.2,12.82 7.09,13.68L8.46,15.06M12,18A2,2 0 0,1 14,20A2,2 0 0,1 12,22C11.68,22 11.38,21.93 11.12,21.79L7.27,20L11.12,18.21C11.38,18.07 11.68,18 12,18Z" />
		</g>
	</svg>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="barcode">
			<path d="M2,6H4V18H2V6M5,6H6V18H5V6M7,6H10V18H7V6M11,6H12V18H11V6M14,6H16V18H14V6M17,6H20V18H17V6M21,6H22V18H21V6Z" />
		</g>
	</svg>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="gauge-full">
			<path d="M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2M12,4A8,8 0 0,1 20,12C20,14.4 19,16.5 17.3,18C15.9,16.7 14,16 12,16C10,16 8.2,16.7 6.7,18C5,16.5 4,14.4 4,12A8,8 0 0,1 12,4M10,6A1,1 0 0,0 9,7A1,1 0 0,0 10,8A1,1 0 0,0 11,7A1,1 0 0,0 10,6M14,6A1,1 0 0,0 13,7A1,1 0 0,0 14,8A1,1 0 0,0 15,7A1,1 0 0,0 14,6M17.09,8.94C16.96,8.94 16.84,8.97 16.7,9L13.5,10.32L13.23,10.43C12.67,10 11.91,9.88 11.25,10.15C10.23,10.56 9.73,11.73 10.15,12.75C10.56,13.77 11.73,14.27 12.75,13.85C13.41,13.59 13.88,13 14,12.28L14.23,12.18L17.45,10.88L17.47,10.87C18,10.66 18.23,10.08 18.03,9.56C17.87,9.18 17.5,8.93 17.09,8.94M7,9A1,1 0 0,0 6,10A1,1 0 0,0 7,11A1,1 0 0,0 8,10A1,1 0 0,0 7,9Z" />
		</g>	
	</svg>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="timer-outline">
			<path d="M12,20A7,7 0 0,1 5,13A7,7 0 0,1 12,6A7,7 0 0,1 19,13A7,7 0 0,1 12,20M19.03,7.39L20.45,5.97C20,5.46 19.55,5 19.04,4.56L17.62,6C16.07,4.74 14.12,4 12,4A9,9 0 0,0 3,13A9,9 0 0,0 12,22C17,22 21,17.97 21,13C21,10.88 20.26,8.93 19.03,7.39M11,14H13V8H11M15,1H9V3H15V1Z" />
		</g>
	</svg>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="tape-measure">
		<path d="M9,5A7,7 0 0,1 16,12H17V15H16V19H9A7,7 0 0,1 2,12A7,7 0 0,1 9,5M9,8A4,4 0 0,0 5,12A4,4 0 0,0 9,16A4,4 0 0,0 13,12A4,4 0 0,0 9,8M17,17H22V19L22,21H20V19H17V17Z" />
		</g>
	</svg>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="arrow-expand-horizontal">
			<path d="M9,11H15V8L19,12L15,16V13H9V16L5,12L9,8V11M2,20V4H4V20H2M20,20V4H22V20H20Z" />
		</g>	
	</svg>
	<svg viewBox="0 0 24 24">
		<g class="icon" id="alert-octagon-outline">
			<path d="M8.27,3L3,8.27V15.73L8.27,21H15.73C17.5,19.24 21,15.73 21,15.73V8.27L15.73,3M9.1,5H14.9L19,9.1V14.9L14.9,19H9.1L5,14.9V9.1M11,15H13V17H11V15M11,7H13V13H11V7" />
		</g>
	</svg>