http status 404

If Dspace shows the error of "http status 404", it means that Tomcat user has no permission to make changes in Dspace folders. 

The lack of Tomcat user  on Dspace folders can also generate problem of reluctant to upload the documents.

Solution

We need to give the permission to the Tomcat user to access Dspace folders, upload and assetstore. First find the Tomcat user name in the Dspace computer. My Tomcat user name is tomcat. Then assign all permissions to write changes in the folders. Open a Terminal and apply following commands:

sudo su

chown -R tomcat /dspace/upload 
chown -R tomcat /dspace/assetstore