In this case, just check the documentation to match the function and package visibility, and ensure that the library is found in Java Build Path in your project properties. Other frequent problems for this error are not the right type of parameters or visibility but then, the compiler will detect the error before running. In both cases, ensure the library which you are referencing in included. By 1996, the growing popularity of Microsoft Windows sim. Select project -> Select properties -> Select Deployment Assembly -> Press Add -> Select Java Build Path Entries -> Select the libraries you want to be included in your exported file (for example a war file) This category is for video games that run on some version of the Microsoft Windows operating system. If you are exporting (for example a war file), follow this Select Run tab -> Run configurations -> Select the configuration you are running -> Check the Classpath tab -> Ensure the libraries you need are there If you are running, check the the run configuration As it is mentioned, the problem usually is that you built your program but when running or exporting it, the library is not included. Usually is even nicer to know how to fix problems. The current reply just tell you why is failing.

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