Databases
StackOverflow2013
Postsdbo
PONo suitable mapping model found for core data migration
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PONo suitable mapping model found for core data migration
    primarykey
    data
    text
    <p>I'm trying to perform an iOS Core Data migration that requires a MappingModel. Core data is not able to use the mapping model for some reason and it falls back to an automatic lightweight migration.</p> <p>I enabled the MigrationDebug option to get more info and what I see makes no sense. The source and destination hashes of the mapping model are identical, ignoring order, to the source and destination ManagedObjectModels. It seems like the mapping model should be used but the log says "no suitable mapping model found".</p> <p>Here is the (elided) log:</p> <pre><code>CoreData: annotation: (migration) will attempt automatic schema migration CoreData: annotation: (migration) looking for mapping model with source hashes: { TSBaseEntity = &lt;4797118c 50068f2f f544d9a9 4884720b 55ec7e4d 0d4c8f4e 1ee44be3 b06d2edc&gt;; TSBuyer = &lt;91e837d1 3f348913 eff634d6 6fb9b3a6 747e2390 fbdc4ae6 32cc56d6 7582d4a8&gt;; ... } destination hashes: { TSBaseEntity = &lt;4797118c 50068f2f f544d9a9 4884720b 55ec7e4d 0d4c8f4e 1ee44be3 b06d2edc&gt;; TSBuyer = &lt;e316a857 8919c4be eef15387 5c67a21b 67d32919 99ead438 1ff93c05 2e065fcc&gt;; ... } CoreData: annotation: (migration) checking mapping model at path file://localhost/Users/xandrews/Library/Application%20Support/iPhone%20Simulator/6.1/Applications/0A84951E-21FC-47C0-A1B7-F880ACB672C4/Dev.app/Migrate_0_5_24To_0_5_27.cdm source hashes: {( &lt;4797118c 50068f2f f544d9a9 4884720b 55ec7e4d 0d4c8f4e 1ee44be3 b06d2edc&gt;, &lt;91e837d1 3f348913 eff634d6 6fb9b3a6 747e2390 fbdc4ae6 32cc56d6 7582d4a8&gt;, ... )} destination hashes: {( &lt;4797118c 50068f2f f544d9a9 4884720b 55ec7e4d 0d4c8f4e 1ee44be3 b06d2edc&gt;, &lt;e316a857 8919c4be eef15387 5c67a21b 67d32919 99ead438 1ff93c05 2e065fcc&gt;, ... )} CoreData: annotation: (migration) no suitable mapping model found CoreData: annotation: (migration) inferring a mapping model between data models with source hashes: ... </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USJohn Andrews
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PONo suitable mapping model found for core data migration
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PONo suitable mapping model found for core data migration
      1. USuser2142362
      1. VTFavorite
    3. VO
      singulars
      1. PONo suitable mapping model found for core data migration
      1. USSergii Rudchenko
      1. VTFavorite
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload