'More than one file was found for OS independent 'META-INF/INDEX.LIST'

when above error come inside project file build.graddle(Module:app) file add 

  packaging Options {
        exclude 'META-INF/INDEX.LIST'
    }

so this will excluded all 'META-INF/INDEX.LIST'
this will work 100%  

after adding any libraries/independencies/ this error came some time

this did not work : packaging Options { /* exclude 'META-INF/DEPENDENCIES' exclude 'META-INF/NOTICE' exclude 'META-INF/LICENSE' exclude 'META-INF/LICENSE.txt' exclude 'META-INF/NOTICE.txt'*/ }

DO NOT ADD THIS IN YOUR build.graddle file



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Source: Stack Overflow

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