data problem

MailClient.Storage.Data.DatabaseHasNewerVersionException: Data file ‘C:\Users\Piemur\AppData\Roaming\eM Client/mail_index.dat’ has version 17 but only versions up to 15 are supported
   at MailClient.Storage.Data.DbRepository1.ThrowIfNewerVersionThanSupported(String databaseName, String resourceName)    at MailClient.Storage.Data.DbRepository1.CheckSchema(String databaseName, String resourceName)
   at MailClient.Storage.Data.DbRepository1..ctor(DataStore dataStore, String location, String indexTable, String[] readWriteDatabaseNames, String[] readOnlyDatabaseNames)    at MailClient.Storage.Data.DbItemRepository1…ctor(DataStore dataStore, String dbLocation, String categoryNamesTable, String indexTable, String[] readWriteDatabaseNames, String[] readOnlyDatabaseNames)
   at MailClient.Storage.Mail.Data.DbMailRepository…ctor(DataStore dataStore, String dbLocation)
   at MailClient.Accounts.ItemRepositories.Open(DataStore dataStore, String accountPath, AccountType accountType)
   at MailClient.Accounts.ItemRepositories…ctor(DataStore dataStore, String accountPath, AccountType accountType)
   at DbRepair.ConsistencyChecker.CheckConsistencyForAccount(String accountDirectory, RepairMode mode, CancellationToken token)
   at DbRepair.ConsistencyChecker.<>c__DisplayClass2_0.b__0(String p)
at DbRepair.PerAccountExecutor.Execute(String dataStoreLocation, Func`2 action)
at DbRepair.ConsistencyChecker.Check(RepairMode mode, CancellationToken token)
at DbRepair.CheckingProcess.Check(CancellationToken token)
AccountType: Mail
DatabaseLocation: C:\Users\Piemur\AppData\Roaming\eM Client\Archive

Hello David,

This error might occur when you’re starting an older version of the program with a new database. By any chance, didn’t you downgrade to a previous version of eM Client recently? If so, please go to eM Client’s database folder and rename it. Then restart eM Client which will create a new database in the supported version.


This error occurred with the first installation of eM which hung.  I uninstalled eM and installed a fresh client hoping that it would not crash. Then the client hung again. Both versions were the same.

Thank you for your reply.