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Java: Determining the Java version used to compile a class, 'class file has the wrong version' | Fabian Lee : Software Engineer
Javarevisited: How to fix class file has wrong version 61.0, should be 53.0 error in Spring Boot? [Solved]
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java - Why the error 'class file has wrong version 61.0, should be 57.0' produces only in IntelliJ and not in STS? - Stack Overflow
Android: class file has wrong version 61.0, should be 55.0 · Issue #5303 · facebook/flipper · GitHub
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Confluence 8 macro com.atlassian.confluence.content.render.xhtml.ConversionContext not working - Confluence Server - The Atlassian Developer Community
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java - Xamarin upgrade causes "class file has wrong version 52.0, should be 50.0" error - Stack Overflow
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