Revit is Autodesk's industry-leading Building Information Modeling (BIM) software, and this Autodesk Official Training Guide thoroughly covers core Revit topics such as modeling, massing, sustainability, and more. It also brings you up to speed on advanced techniques such as using Revit in the cloud and how to go direct to fabrication.

Organized by real-world workflows, this book covers the interface, templates, worksharing, modeling and massing, visualization techniques for different industries, sustainability, roofs and floors, stairs and railings, documentation, and much more.

This Autodesk Official Training Guide teaches you how to use the leading BIM software and also serves as a study aid for Autodesk's Certified Associate and Certified Professional exams
Organized according to actual workflows, the book begins with an explanation of key BIM concepts, familiarizes you with the interface, and then moves into actual application
Covers modeling and massing, the Family Editor, visualization techniques for various industries, documentation, annotation and detailing, and how to work with complex walls, roofs, floors, stairs, and railings
Companion website features before-and-after tutorial files, so readers can jump in at any point

Mastering Autodesk Revit Architecture helps you learn Revit in a context that makes real-world sense.

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The value '' cannot be converted to a number.

The error occurred in D:/wwwroot/traintestcert/estore/training_product.cfm: line 222

220 : 	<cfprocparam  type="In"  cfsqltype="CF_SQL_CHAR" value="A">	
221 : </cfstoredproc>
222 : <cfset cart_total = buytotalamount + GetECommerceMatrix.selling_price>
223 : <cfoutput>
224 : <script type="text/javascript">

Resources:

Check the ColdFusion documentation to verify that you are using the correct syntax.
Search the Knowledge Base to find a solution to your problem.

Browser	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Remote Address	10.0.120.66
Referrer
Date/Time	26-Apr-24 05:25 AM

Stack Trace

at cftraining_product2ecfm329136785.runPage(D:/wwwroot/traintestcert/estore/training_product.cfm:222)

coldfusion.runtime.Cast$NumberConversionException: The value '' cannot be converted to a number.
	at coldfusion.runtime.Cast._double(Cast.java:825)
	at coldfusion.runtime.Cast._double(Cast.java:803)
	at coldfusion.runtime.Cast._double(Cast.java:1110)
	at coldfusion.runtime.Cast._double(Cast.java:1100)
	at cftraining_product2ecfm329136785.runPage(D:\wwwroot\traintestcert\estore\training_product.cfm:222)
	at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:262)
	at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:735)
	at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:565)
	at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
	at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:595)
	at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:43)
	at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
	at coldfusion.filter.PathFilter.invoke(PathFilter.java:162)
	at coldfusion.filter.IpFilter.invoke(IpFilter.java:45)
	at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:96)
	at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:78)
	at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
	at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
	at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:60)
	at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
	at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
	at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62)
	at coldfusion.CfmServlet.service(CfmServlet.java:226)
	at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:46)
	at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:47)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:377)
	at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:463)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:889)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.base/java.lang.Thread.run(Thread.java:834)