class org.bouncycastle.util.IPAddresss signer information does not match signer information of other classes in the same package

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Hi Expert When I debug an app with Eclipse，it has an error like class "org.bouncycastle.util.IPAddress"'s signer information does not match signer information of other classes in the same package Could you some one help investigate the root casue and sovle this issue?  
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The bouncycastle libraries are used for encryption in modules like Encryption and SAML. It sounds like you may have multiple versions of the library in your application, and it could be trying to load incompatible versions. If this is the case, the solution is to go into your applications userlib folder and delete any duplicate jar you find. Keep the versions with the highest revision numbers. In particular pay attention to the jar files starting with "bc" as these are the bouncycastle libraries.

 

I hope this helps. Good luck!

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