Exception in thread “main” java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory

Question

I am using pdfbox in java to convert pdf to images. But when I compile I got the message

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory .

Here is the code I am following . Kindly help me to get out of this error.

Answer 1

You need the Apache Commons Logging library on your classpath.

Chances are that you're missing all the dependencies of PDFBox :

Minimum Requirement for PDFBox

• Java 1.5
• commons-logging

Answer 2

Add commons-logging.jar file to your project classpath. that will fix the issue.

Answer 3

您需要确保apache库在运行时位于类路径上。

Answer 4

I had the same problem and I have tried all of the solutions on the web, I had all of the required JAR files in my CLASSPATH ... but it didn't work. then I decided to move my JAR files from my DROPBOX folder to a normal folder and it worked!

So if your JARs are on dropbox or anything like that, move them to a normal folder and add them to your classpath! it will solve the java.lang.NoClassDefFoundError exception.

Answer 5

Is the commons logging jar on the classpath? You can download this from Download Commons Logging