include project-id in error message

Author: ywangd

server/src/main/java/org/elasticsearch/repositories/RepositoriesService.java

@@ -916,7 +916,10 @@ public Repository createNonProjectRepository(RepositoryMetadata repositoryMetada
     }
 
     private static Repository throwRepositoryTypeDoesNotExists(ProjectId projectId, RepositoryMetadata repositoryMetadata) {
-        throw new RepositoryException(repositoryMetadata.name(), "repository type [" + repositoryMetadata.type() + "] does not exist");
+        throw new RepositoryException(
+            repositoryMetadata.name(),
+            "repository type [" + repositoryMetadata.type() + "] does not exist for project [" + projectId + "]"
+        );
     }
 
     private static Repository createUnknownTypeRepository(ProjectId projectId, RepositoryMetadata repositoryMetadata) {

server/src/test/java/org/elasticsearch/repositories/RepositoriesServiceTests.java

@@ -305,7 +305,7 @@ public void onResponse(AcknowledgedResponse acknowledgedResponse) {
             @Override
             public void onFailure(Exception e) {
                 assertThat(e, isA(RepositoryException.class));
-                assertThat(e.getMessage(), equalTo("[" + repoName + "] repository type [unknown] does not exist"));
+                assertThat(e.getMessage(), equalTo("[" + repoName + "] repository type [unknown] does not exist for project [default]"));
             }
         });
     }