我正在尝试在 Spark 中使用 Bazel 构建它来运行“hello world”服务器，但我收到此错误：
$ bazel run //:app
INFO: Analysed target //:app (0 packages loaded).
INFO: Found 1 target...
Target //:app up-to-date:
bazel-bin/app.jar
bazel-bin/app
INFO: Elapsed time: 0.201s, Critical Path: 0.00s
INFO: 0 processes.
INFO: Build completed successfully, 1 total action
INFO: Build completed successfully, 1 total action
Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at spark.Service.<clinit>(Service.java:56)
at spark.Spark$SingletonHolder.<clinit>(Spark.java:51)
at spark.Spark.getInstance(Spark.java:55)
at spark.Spark.<clinit>(Spark.java:61)
at io.app.server.Main.main(Main.java:7)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 5 …