# ktor

Cristian Rosa

11/11/2021, 4:14 PM
Does anyone know (or had faced the problem) when I “runDistributable” (or the app from the file generated buy intellij) I got this error:
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Failed to instantiate SLF4J LoggerFactory
Reported exception:
java.lang.NoClassDefFoundError: javax/naming/NamingException
The weird thing is if I run the app throw the IDE or with a jar by command line no error and everything works as expected the module where I got the error is a pretty simple ktor server (with some client part to talk to a master-server) a very simple views written in compose
according a few researches it seems a problem from logback used by ktor for logging messages!
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by taking that line out for build.gradle app start works with a different error:
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SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See <> for further details.