当尝试通过EvoSuite生成JUnit测试时，我收到以下错误
警告：未能为2个类中的2个类生成测试
在Eclipse中，我在Maven Build ...
中执行了命令evosuite:generate
提供下面的相关日志部分
[INFO] Going to start job for: artifact123.App. Expected to end in 120 seconds, by 2018-06-03T14:45:01.159
[INFO] [MASTER] 14:48:00.993 [main] ERROR JobExecutor - The jobs did not finish in time
[INFO] Completed job. Left: 0
[INFO] * Updating database to artifact123.App
[INFO] * Updating database to artifact123.Calculator
[INFO] === CTG run results ===
[INFO] Removed test suites: 0
[INFO] New test suites: 0
[INFO] Missing classes:
[INFO] artifact123.App
[INFO] artifact123.Calculator
[INFO] WARN: failed to generate tests for 2 classes out of 2
[INFO] Stopping spawn process manager
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 05:37 min
[INFO] Finished at: 2018-06-03T14:48:02-04:00
[INFO] Final Memory: 24M/241M
[INFO] ------------------------------------------------------------------------