I have fixed the BeanCreationExceptions

src/main/java/io/zipcoder/tc_spring_poll_application/controller/VoteController.java

         return new ResponseEntity<>(null, responseHeaders, HttpStatus.CREATED);
     }
 
-    @RequestMapping(value="/polls/{pollId}/votes", method=RequestMethod.GET)
-    public Iterable<Vote> getAllVotes() {
+    @RequestMapping(value="/polls/votes", method=RequestMethod.GET)
+    public Iterable<Vote> getAllVotes(@PathVariable("pollId") String pollId) {
         return voteRepository.findAll();
     }
 

src/main/java/io/zipcoder/tc_spring_poll_application/dtos/ComputeResultController.java

 
 @RestController
 public class ComputeResultController {
+
     @Inject
     private VoteRepository voteRepository;
 

src/main/java/io/zipcoder/tc_spring_poll_application/dtos/VoteResult.java

 import java.util.Collection;
 
 public class VoteResult {
+
     private int totalVotes;
     private Collection<OptionCount> results;