Error while creating new note in chapter 6, can't beginn

If I run the app for the first time and try to create some notes how suggested in the tutorial, it crashes with the reason:

2016-05-15 13:40:03.791 UnCloudNotes[1635:200517] CoreData: error: -addPersistentStoreWithType:SQLite configuration:(null) URL:file:///Users/antondederer1/Library/Developer/CoreSimulator/Devices/3D7E07F0-4F95-428B-9867-6DF5BCAEF387/data/Containers/Data/Application/0F73886C-74ED-4441-A89F-94A0A74637E0/Library/Application%20Support/UnCloudNotes.sqlite options:(null) ... returned error Error Domain=NSCocoaErrorDomain Code=134100 "(null)" UserInfo={metadata={
     NSPersistenceFrameworkVersion = 637;
     NSStoreModelVersionHashes =     {
         Note = <c393d6c8 d5e65f5a bb5e4394 eb6ce54c a99e724d bdb64072 ed2e99dd 99e77ba0>;
     };
     NSStoreModelVersionHashesVersion = 3;
     NSStoreModelVersionIdentifiers =     (
         ""
     );
     NSStoreType = SQLite;
     NSStoreUUID = "A29DF4F2-B523-49D4-80FA-09AD120BD943";
     "_NSAutoVacuumLevel" = 2;
 }, reason=The model used to open the store is incompatible with the one used to create the store} with userInfo dictionary {
     metadata =     {
         NSPersistenceFrameworkVersion = 637;
         NSStoreModelVersionHashes =         {
             Note = <c393d6c8 d5e65f5a bb5e4394 eb6ce54c a99e724d bdb64072 ed2e99dd 99e77ba0>;
         };
         NSStoreModelVersionHashesVersion = 3;
         NSStoreModelVersionIdentifiers =         (
             ""
         );
         NSStoreType = SQLite;
         NSStoreUUID = "A29DF4F2-B523-49D4-80FA-09AD120BD943";
         "_NSAutoVacuumLevel" = 2;
     };
     reason = "The model used to open the store is incompatible with the one used to create the store";
 }
 Store Error: Error Domain=NSCocoaErrorDomain Code=134100 "(null)" UserInfo={metadata={
     NSPersistenceFrameworkVersion = 637;
     NSStoreModelVersionHashes =     {
         Note = <c393d6c8 d5e65f5a bb5e4394 eb6ce54c a99e724d bdb64072 ed2e99dd 99e77ba0>;
     };
     NSStoreModelVersionHashesVersion = 3;
     NSStoreModelVersionIdentifiers =     (
         ""
     );
     NSStoreType = SQLite;
     NSStoreUUID = "A29DF4F2-B523-49D4-80FA-09AD120BD943";
     "_NSAutoVacuumLevel" = 2;
 }, reason=The model used to open the store is incompatible with the one used to create the store}
 2016-05-15 13:40:12.031 UnCloudNotes[1635:200517] Unwinding to Notes List
 2016-05-15 13:40:12.063 UnCloudNotes[1635:200517] CoreData: error: Illegal attempt to save to a file that was never opened.  "This NSPersistentStoreCoordinator has no persistent stores (schema mismatch or migration failure).  It cannot perform a save operation.".  Last recorded error = Error Domain=NSCocoaErrorDomain Code=134100 "(null)" UserInfo={NSFilePath=/Users/antondederer1/Library/Developer/CoreSimulator/Devices/3D7E07F0-4F95-428B-9867-6DF5BCAEF387/data/Containers/Data/Application/0F73886C-74ED-4441-A89F-94A0A74637E0/Library/Application Support/UnCloudNotes.sqlite} / {
     NSFilePath = "/Users/antondederer1/Library/Developer/CoreSimulator/Devices/3D7E07F0-4F95-428B-9867-6DF5BCAEF387/data/Containers/Data/Application/0F73886C-74ED-4441-A89F-94A0A74637E0/Library/Application Support/UnCloudNotes.sqlite";
 }
 2016-05-15 13:40:12.069 UnCloudNotes[1635:200517] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'This NSPersistentStoreCoordinator has no persistent stores (schema mismatch or migration failure).  It cannot perform a save operation.'

Erase the app from the simulator or device, then run again.