How to Resolve the `java.lang.NoClassDefFoundError` and Add Directories to the Classpath in IntelliJ IDEA?

Overcoming the Classpath Enigma in IntelliJ IDEA

Encountering the enigmatic error java.lang.NoClassDefFoundError while attempting to add a directory to an application run profile's classpath can be a perplexing hurdle. However, this guide will deftly navigate you through the intricacies of resolving this issue in IntelliJ IDEA.

Firstly, in IntelliJ IDEA 13 and later versions, a different approach is required. Commence by revealing the Project view or evoking it with Alt 1. Navigate to your project or sub-module, select it, and press F4 (or F12 in IntelliJ 14) to access Module Settings.

Proceed to the dependencies tab, where you will encounter a "plus" button on the right. Summon the "Jars or directories..." option and embark on a quest to locate the desired path. Upon selecting it, click OK.

The subsequent dialog will prompt you to "Choose Categories of Selected File." Astutely select Classes (even for properties) and endorse your choice with two affirmative clicks. Your application is now poised to execute with the selected path securely embedded within its class path.

The above is the detailed content of How to Resolve the `java.lang.NoClassDefFoundError` and Add Directories to the Classpath in IntelliJ IDEA?. For more information, please follow other related articles on the PHP Chinese website!