@baoyu_li  Yes you can host the apk file on AEM in DAM assets. And same can be published and available to download by the same path at which you hasted it.

@ashwinikhaple You cam refer the following links for reference:http://www.6dglobal.com/blog/creating-custom-CQ-workflow-process-step-2014-10-14https://experienceleague.adobe.com/docs/experience-manager-64/developing/extending-aem/extending-workflows/workflows.html?lang=en#extending-aem  

@renoyroy Can you try deleting your node modules and again execute the npm install ?

@madhavimaheshwari - I think the authorization issue is because of the login creds but if you are already providing that can you try adding the content type as JSON and try hitting it again?

@MikeXXXX  - Are you using any inheritance to child pages from parent page that you are trying to roll-out ?

@Ganthimathi_R - Please refer this link which have the same query https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/number-field-with-decimal-values/qaq-p/290875 

@Shaheena_Sheikh -  You need to target the specific class and use coral Ui in jquery. One example that you can consider is : https://aemsimplifiedbynikhil.wordpress.com/2018/07/29/multifield-and-dialog-data-in-jquery/ 

@papenaarun - As per my experience with AEM SPA, you need to have one more rewrite rule for model.json as well.Thanks,Nikhil Kumar

@Manasi27 - You can manually give the path of the node in the package Manager and try to build that package and the try to deploy wherever you want.

@baw_gov  - Try using below solution:https://aemsimplifiedbynikhil.wordpress.com/2018/07/30/create-touchui-multifield-component-in-aem-6-3/