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I am trying to generate a signed .apk in android studio. But I have not been able to do the same showing me the following error. I have tried searching a lot and found no solution. Please see the following code:

Warning:com.fasterxml.jackson.databind.ext.DOMSerializer: can't find referenced class org.w3c.dom.bootstrap.DOMImplementationRegistry
Warning:com.fasterxml.jackson.databind.ext.PathDeserializer: can't find referenced class java.nio.file.Path
Warning:com.fasterxml.jackson.databind.ext.PathDeserializer: can't find referenced class java.nio.file.Paths
Warning:com.fasterxml.jackson.databind.ext.PathDeserializer: can't find referenced class java.nio.file.Path
Warning:com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector$Java7Support: can't find referenced class java.beans.Transient
Warning:com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector$Java7Support: can't find referenced class java.beans.ConstructorProperties

Brian Tompsett - 汤莱恩
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user3414796
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1 Answers1

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Two possibilities:

1.Try disabling minify. Set minify to false on release build type and try to generate Apk.

2.Exclude the required java class files from minify using the proguard file. Libraries including Jackson usually needs to be excluded from minify.

Alexander The Great
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  • Thanks for reaching out....If I do the 1st way u told, there will be no use of using jackson as i wont be getting benefit of proguard. 2nd) And if try the second way then i get the following error... ??? com.fasterxml.jackson.databind.introspect.VisibilityChecker$Std. libcore.reflect.AnnotationAccess.decodeValue (AnnotationAccess.java:688) java.lang.Class.getAnnotation (Class.java:344) com.fasterxml.jackson.databind.introspect.VisibilityChecker$Std. (Unknown Source) com.fasterxml.jackson.databind.introspect.VisibilityChecker$Std.defaultInstance (Unknown Source) – user3414796 Jun 17 '16 at 06:02