What does the "gson cannot be resolved to a module" error in module-info.java mean?

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The "gson cannot be resolved to a module" error in module-info.java likely means that the Gson library is not properly included as a module in the project or module dependencies. This can cause compilation errors when the code references Gson classes and methods. To resolve this error, ensure that Gson is properly included as a module dependency or add its JAR file to the classpath.