System.OverflowException: Value was either too large or too small for an Int32

Hi,

the error is thrown when I try to save my xslt.
I'd like to understand HOW umbraco comes up with this error while saving the xslt? At this point it wouldn't even know what my xml input will be, so..., why is this error thrown?

(some forum people say 'just to ignore the error and force a save to file but that doesn't work and I am getting a live error then */

Especially disturbing is that my xslt file works on my development maschine but not on the hosted live version which has an identical umbraco installation. The only thing I am not controlling is the rest of the live environment. So my question is also: what exactly happens in the background when umbraco 'saves' the xslt?

Here's a simplified version of a xslt statement sequence in my xslt file which will ultimately lead to the exception:

<xsl:variable name="navidB" select="string(my_NaviItemInternalLink)"/> /* with or without 'string' makes no difference */
<xsl:value-of select="$navidB"/>                      /* test print out: 1168 */

<xsl:variable name="navidA" select="1168"/>
<xsl:variable name="navidTestA" select="umbraco.library:NiceUrl($navidA)"/>    /* works */

if I now modify the above line and use $navidB instead of $navidA then I am getting the error...

<xsl:variable name="navidTestB" select="umbraco.library:NiceUrl($navidB)"/>    /* throws error:  System.OverflowException: Value was either too large or too small for an Int32.

WHY IS THAT ERROR THROWN ? */
                 

=== my xml would look like this ===

<nodeA id=999 creator=.... etc.>

   <my_NaviItemInternalLink>1168</my_NaviItemInternalLink>

</nodeA>

=== full error for your reference: ===
System.OverflowException: Value was either too large or too small for an Int32.
at System.Convert.ToInt32(Double value)
at System.Double.System.IConvertible.ToInt32(IFormatProvider provider)
at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
at System.Xml.Xsl.Runtime.XmlQueryRuntime.ChangeTypeXsltArgument(XmlQueryType xmlType, Object value, Type destinationType)
at System.Xml.Xsl.Runtime.XmlQueryContext.InvokeXsltLateBoundFunction(String name, String namespaceUri, IList`1[] args)
at (XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime, IList`1 parent)
at (XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime, XPathNavigator {urn:schemas-microsoft-com:xslt-debug}current)
at Root(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime)
at Execute(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime)
at System.Xml.Xsl.XmlILCommand.Execute(Object defaultDocument, XmlResolver dataSources, XsltArgumentList argumentList, XmlSequenceWriter results)
at System.Xml.Xsl.XmlILCommand.Execute(Object defaultDocument, XmlResolver dataSources, XsltArgumentList argumentList, XmlWriter writer)
at System.Xml.Xsl.XslCompiledTransform.Transform(IXPathNavigable input, XsltArgumentList arguments, XmlWriter results, XmlResolver documentResolver)
at System.Xml.Xsl.XslCompiledTransform.Transform(IXPathNavigable input, XsltArgumentList arguments, TextWriter results)
at umbraco.presentation.webservices.codeEditorSave.SaveXslt(String fileName, String oldName, String fileContents, Boolean ignoreDebugging)