ios - RestKit Core Data 'managedObjectStore is nil' -

i don't know if root cause of issue or not, when making request using

appropriateobjectrequestoperationwithobject:nil method:rkrequestmethodget path:path parameters:nil 

it work, , when trying map response gives me warning:

w restkit:rkobjectmanager.m:635 asked create `rkmanagedobjectrequestoperation` object, managedobjectstore nil. 

followed by:

coredata: error: failed call designated initializer on nsmanagedobject class 'container' 

i assume because not matching request against managed object mapping, can't figure out why. creating persistent store using code:

// initialize managed object store nsmanagedobjectmodel *managedobjectmodel = [nsmanagedobjectmodel mergedmodelfrombundles:nil]; rkmanagedobjectstore *managedobjectstore = [[rkmanagedobjectstore alloc] initwithmanagedobjectmodel:managedobjectmodel]; nserror *error = nil; [managedobjectstore createpersistentstorecoordinator]; bool success = rkensuredirectoryexistsatpath(rkapplicationdatadirectory(), &error); if (! success) {     rklogerror(@"failed create application data directory @ path '%@': %@", rkapplicationdatadirectory(), error); } nsstring *path = [rkapplicationdatadirectory() stringbyappendingpathcomponent:@"store.sqlite"]; nspersistentstore *persistentstore = [managedobjectstore addsqlitepersistentstoreatpath:path fromseeddatabaseatpath:nil withconfiguration:nil options:nil error:&error]; if (! persistentstore) {     rklogerror(@"failed adding persistent store @ path '%@': %@", path, error); } [managedobjectstore createmanagedobjectcontexts]; 

the appropriate mapping/response descriptor:

rkentitymapping *containermapping = [rkentitymapping mappingforentityforname:@"container" inmanagedobjectstore:managedobjectstore]; [containermapping addattributemappingsfromdictionary:@{                                                   @"id" : @"containerid",                                                   @"name" : @"name",                                                   @"public" : @"ispublic",                                                   @"user": @"userid",                                                   }]; containermapping.identificationattributes = @[@"containerid"];  responsedescriptor = [rkresponsedescriptor      responsedescriptorwithmapping:containermapping     method:rkrequestmethodany     pathpattern:nil      keypath:@"containers"     statuscodes:rkstatuscodeindexsetforclass(rkstatuscodeclasssuccessful)]; 

it seems have not configured object manager reference managed object store. should done when create object manager:

objectmanager.managedobjectstore = managedobjectstore; 

without restkit falls using plain object operations everything.

note: if you're logging warnings see asked create rkmanagedobjectrequestoperation object, managedobjectstore nil in log output.