we created a new server for our AEM instance. in that instance when I'm trying to install any package im getting this error. any suggestions on how to fix it?(we don't have CRX-quickstart used s3 bucket and the instance came as an AMI image) below attaching the error 

hii @kautuk_sahni   i havent find the solution yet . you can see my replies to comments im still facing the same issue.

hii @Hemant_arora    the service user is created and logs i can not see any logs in error.log related to this file . but the service is registering . can you help me how to resolve the replication . the above code i have given diff service user . but i created new user and giving you ss. and i have ...

I can not see any logs in error.log in log support . i can see my component service in active but it is not relfecting anything . how can i debug this . or where can i see logs for this . please help me you can igonre the service user name changing. i have created new one as in the ss

i need to add email address from all child nodes that are having, to the parent node but I'm unable to replicate my changes . my changes are not reflcting in the aem node . this is the code I'm using . ive installed the folder node from the package manager.package com.cni.cq.dam.ui.contactsheet.serv...

you are right ! I've tried lower versions and it worked for me thanks.

as you can see I'm not getting any image-list articles it is just giving blank. when i try to save the dialog it is giving me the same error don't know the reason. sling model is there on the bundle there are some version errors but i don't think it will cause the problem.im also attaching bundle sc...

hii @aanchal-sikka  I'm unable to get the component on the page still getting the same error is it possible could you give the working image-list component as zip. thank you.

yes @aanchal-sikka ive tried that as well but getting this error while project build.what could be the possible error

hii @aanchal-sikka this is only comonent which is giving like this rest all working fine.and also the sling-model-classes includes ImageListImpl as well .  and im using WKND Sites Project - Reactor Project 2.1.5-SNAPSHOT. and my aem updated service pack is 6.5.12.0