Error while trying to expose data to browser

Hi Experts,

I am getting the below errors while trying to expose the data to browser from Hana system. Could you please help me out to resolve these. I have gone through Hana videos on open.sap.com

1. If I run the application as HTML then I am getting the following error at sap.ui.localResources("hana_html");

2. If I run the application as Web app view then I am getting "Problem accessing in *.xsodata/$metadata, Reason : Not found' . If I checkhttp://<servername>:80<instance>/<path>.xsodata/$metadata I am able to see the data in the browsers, and *.xsodata/<mytablename> then I can see the data in xml format.\

3. I am getting 404 not found error while opening the below link

http://<WebServerHost>:80<SAPHANAinstance>/sap/hana/xs/ide/editor

Your help will be rewarded