Error: The specified item already exists in the keychain.

[sentry-io[bot]]

Sentry Issue: METAMASK-MOBILE-2BAS

Error: The specified item already exists in the keychain.
  at r (ses.cjs:7575:17)
  at backupVault (app/core/BackupVault/backupVault.ts:41:32)
  at backupVault (app/core/BackupVault/backupVault.ts:67:2)
  at <global> (app/core/BackupVault/backupVault.ts:37:34)
  at controllerMessenger.subscribe$argument_1 (app/core/Engine.ts:895:9)
...
(45 additional frame(s) were not displayed)

[gauthierpetetin]

Hi @gantunesr @mikesposito @Gudahtt do we have an idea when this situation can happen? => We try to save an item in the vault but the item is already included in the vault.

[mikesposito]

The error should be thrown by

const backupResult = await setInternetCredentials(
    VAULT_BACKUP_KEY,
    VAULT_BACKUP_KEY,
    keyringState.vault,
    options,
);

setInternetCredentials comes from the react-native-keychain package, and apparently, the package throws that error when the credentials we are trying to save already exist in the OS keychain

So with "keychain" the error is not referring to our vault in this case, but the vault backup fails for some reason

[mikesposito]

But this does not make much sense, since the credentials at slot VAULT_BACKUP_KEY should be expected to exist, since we update the value stored each time the user vault is updated. So I'm still unsure about which case would make react-native-keychain complain, instead of just overwriting the credentials

[github-actions[bot]]

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