I've seen several similar questions on stackoverflow, but they didn't solved my problem. If the Host autoDeploy attribute is "true", the Host will attempt to deploy and update web applications dynamically, as needed, for example if a new .WAR is dropped into the appBase.For this to work, the Host needs to have background processing enabled which is the Worked for me. JDBC driver is not loaded. Take note that Tomcat 10 is not compatible with Tomcat 9 - Applications that run on Tomcat 9 and earlier will not run on Tomcat 10 without changes. (kkolinko) Avoid useless environment restore when not using GSSCredential in JNDIRealm. I was actually using tomcat server installed in my computer and i just thought of start using spring boot. Inside the dialogue box there the heading "Tomcat Manager Application" and fields for "User Name" and "Password." -->