[Solved] Idea Error: Error running ‘Application‘: Command line is too long

When a new project is started in idea, it sometimes reports an error running ‘application’: command line is too long Short command line for application or aalso for spring boot default configuration, the error message is as follows:


First find the idea/workspace.xml file inside the project, then find the <component name=”PropertiesComponent”></component > tag, which looks like this

Then add a line in the component tag <property name=”dynamic.classpath” value=”true” />, which would look like this

In this way, no error will be reported when starting the project.

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