How to fix org.testng.TestNGException: Cannot find class in classpath

admin

6 years ago

Table of Contents

Overview

Let’s learn how to fix org.testng.TestNGException: Cannot find class in classpath in this post. All the tests classes are complied before there are run. This error indicates that the .class file is not found by the TestNG to run the test class.

Sample Error Trace

org.testng.TestNGException: 
Cannot find class in classpath: com.testingdocs.testng.tutorials
.TestNGAnnotationExecutionOrder
	at org.testng.xml.XmlClass.loadClass(XmlClass.java:75)
	at org.testng.xml.XmlClass.init(XmlClass.java:67)
	at org.testng.xml.XmlClass.(XmlClass.java:54)
	at org.testng.xml.TestNGContentHandler.
startElement(TestNGContentHandler.java:556)
	at java.xml/com.sun.org.apache.xerces.internal
.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:518)
	at java.xml/com.sun.org.apache.xerces.internal
.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:731)
	at java.xml/com.sun.org.apache.xerces.internal
.impl.XMLDocumentFragmentScannerImpl
.scanStartElement(XMLDocumentFragmentScannerImpl.java:1406)
	at java.xml/com.sun.org.apache.xerces.internal
.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver
.next(XMLDocumentFragmentScannerImpl.java:2725)
	at java.xml/com.sun.org.apache.xerces.internal
.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605)
	at java.xml/com.sun.org.apache.xerces.internal
.impl.XMLDocumentFragmentScannerImpl
.scanDocument(XMLDocumentFragmentScannerImpl.java:541)
	at java.xml/com.sun.org.apache.xerces.internal
.parsers.XML11Configuration.parse(XML11Configuration.java:888)
	at java.xml/com.sun.org.apache.xerces.internal
.parsers.XML11Configuration.parse(XML11Configuration.java:824)
	at java.xml/com.sun.org.apache.xerces.internal
.parsers.XMLParser.parse(XMLParser.java:141)
	at java.xml/com.sun.org.apache.xerces.internal
.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1224)
	at java.xml/com.sun.org.apache.xerces.internal
.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635)
	at java.xml/com.sun.org.apache.xerces.internal
.jaxp.SAXParserImpl.parse(SAXParserImpl.java:324)
	at java.xml/javax.xml.parsers.SAXParser.parse(SAXParser.java:197)
	at org.testng.xml.XMLParser.parse(XMLParser.java:39)
	at org.testng.xml.SuiteXmlParser.parse(SuiteXmlParser.java:16)
	at org.testng.xml.SuiteXmlParser.parse(SuiteXmlParser.java:9)
	at org.testng.xml.Parser.parse(Parser.java:162)
	at org.testng.xml.Parser.parse(Parser.java:248)
	at org.testng.TestNG.parseSuite(TestNG.java:322)
	at org.testng.TestNG.initializeSuitesAndJarFile(TestNG.java:374)
	at org.testng.TestNG.initializeEverything(TestNG.java:1017)
	at org.testng.remote.support.RemoteTestNG6_12
.initialize(RemoteTestNG6_12.java:22)
	at org.testng.remote.AbstractRemoteTestNG
.run(AbstractRemoteTestNG.java:98)
	at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
	at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)

Fix

By default, the test classes are generated under the target folder.

<project_home>/target/test-classes

The fix generally depends on the project setup environment, build tool, ide used etc. If the project is based on Maven using Eclipse IDE, the fix is to clean and update the project.

TestNG Tutorials on this website can be found at:

https://www.testingdocs.com/testng-framework-tutorial/

For more details on the TestNG Framework, visit the official website of TestNG at:

https://testng.org