java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

Stack Overflow | Richard | 6 months ago
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Root Cause Analysis

  1. java.lang.ClassNotFoundException

    org.slf4j.LoggerFactory

    at java.net.URLClassLoader.findClass()
  2. Java RT
    ClassLoader.loadClass
    1. java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    2. java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    3. java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    3 frames
  3. Spark
    Spark.<clinit>
    1. spark.Service.<clinit>(Service.java:47)
    2. spark.Spark$SingletonHolder.<clinit>(Spark.java:49)
    3. spark.Spark.getInstance(Spark.java:53)
    4. spark.Spark.<clinit>(Spark.java:59)
    4 frames
  4. Unknown
    MavenTest01.main
    1. MavenTest01.main(MavenTest01.java:20)
    1 frame