Urbackup client 2.0.31 & 2.0.32 prefilebackup script failed with error code

Currently have urbackup server 2.0.33 and have install urbackup client 2.0.31 & 2.0.32 on windows 7 x64 operating systems trying to do full and incremental backups. The server keeps returning the below error:

Constructing of filelist of “client name” failed: error - prefilebackup script failed with error code -1073741502

The client is currently set to use internet mode.

Could someone assist me in resolving this problem or a work around.

The prefilebackup script should end with errorlevel 0. In a batch file you can use the exit command for this like:

EXIT /B 0

This command must be at the end of the batch file. With this, it doesn’t matter what errorlevel the application befor the exit command throws .

Greets
Marco

Should I still apply “EXIT /B O” even if I am not using any prefilebackup script. What happens is that I do not have any prefilebackup script in the bat file. I am getting this error before my incremental happens and it seems that due to this error the incremental backup are not executing.

Thanks for the respond.

As default the prefilebackup.bat is existing and empty (only with of 1 line with a comment). If you don’t use the prefilebackup.bat leave it as it is. You don’t need to put the exit command in the prefilebackup.bat.

If your prefilebackup.bat is also empty and urback throws this error, i cannot help. Maybe another user or @uroni can help you. Sorry…

Is the prefilebackup script at “C:\Program Files\UrBackup\prefilebackup.bat” as usual or is there something unusual about that path (such as non-ASCII characters…)?

Did this ever get resolved?
I’m getting the exact same error using UrBackup server 2.1.19 under Win 2012r2
The failing client is Win 10 Pro (build 15063), 32 bit running client 2.1.19-cbt
CBT is disabled, as I’ve not sufficient licences to enable it everywhere, and this is a LAN client, so I’m not bothered about the speed. Besides I’ve yet to get it working properly on the first client - see post elsewhere.

This problem only occurred since applying the update to the cbt client, everything was working with client version 2.1.16

The prefilebackup script is at “C:\Program Files\UrBackup\prefilebackup.bat” and only contains the default comment.

Odd that the OP should have had the issue exactly a year ago… is there something peculiar going on with the date?
Todays entries from the client log:

2017-09-05 03:26:59: WARNING: SQLite: statement aborts at 3: [BEGIN IMMEDIATE;] cannot start a transaction within a transaction errorcode: 1
2017-09-05 03:26:59: ERROR: Error in CQuery::Execute - cannot start a transaction within a transaction Stmt: [BEGIN IMMEDIATE;]
2017-09-05 03:26:59: ERROR: SQL: cannot start a transaction within a transaction Stmt: [BEGIN IMMEDIATE;]
2017-09-05 03:27:14: WARNING: SQLite: statement aborts at 1: [END;] cannot commit - no transaction is active errorcode: 1
2017-09-05 03:27:14: ERROR: Error in CQuery::Execute - cannot commit - no transaction is active Stmt: [END;]
2017-09-05 03:27:14: ERROR: SQL: cannot commit - no transaction is active Stmt: [END;]
2017-09-05 03:27:15: ERROR: Could not open path in os_get_final_path for “C:\Users\User\AppData\Local\Microsoft\Windows\INetCache\Low\Global\C:\Users\User\AppData\Local\Microsoft\Windows\INetCache\Low\IE”
2017-09-05 15:29:18: WARNING: SQLite: statement aborts at 3: [BEGIN IMMEDIATE;] cannot start a transaction within a transaction errorcode: 1
2017-09-05 15:29:18: ERROR: Error in CQuery::Execute - cannot start a transaction within a transaction Stmt: [BEGIN IMMEDIATE;]
2017-09-05 15:29:18: ERROR: SQL: cannot start a transaction within a transaction Stmt: [BEGIN IMMEDIATE;]
2017-09-05 15:29:37: WARNING: SQLite: statement aborts at 1: [END;] cannot commit - no transaction is active errorcode: 1
2017-09-05 15:29:37: ERROR: Error in CQuery::Execute - cannot commit - no transaction is active Stmt: [END;]
2017-09-05 15:29:37: ERROR: SQL: cannot commit - no transaction is active Stmt: [END;]
2017-09-05 15:29:38: ERROR: Could not open path in os_get_final_path for “C:\Users\User\AppData\Local\Microsoft\Windows\INetCache\Low\Global\C:\Users\User\AppData\Local\Microsoft\Windows\INetCache\Low\IE”
2017-09-05 19:36:52: ERROR: Recvfrom error in CUDPThread::UdpStep
2017-09-05 19:36:52: ERROR: Last error: 10058