What Version of logback should be used with ranger usersync 2.5.0

[Laurence Brown via user <us...@ranger.apache.org>]

After compiling ranger 2.5 I seem to missing a logging dependency leaving me with the following as the only log

SLF4J(W): No SLF4J providers were found.
SLF4J(W): Defaulting to no-operation (NOP) logger implementation
SLF4J(W): See https://www.slf4j.org/codes.html#noProviders for further details.

I've tried adding logback-classic-1.3.14.jar into the claspath (Im currently running with openjdk version "1.8.0_412")
But this gives the following error

SLF4J(E): A service provider failed to instantiate:
org.slf4j.spi.SLF4JServiceProvider: Provider ch.qos.logback.classic.spi.LogbackServiceProvider could not be instantiated

Can anyone tell me what version should work?






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