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Power Platform CLI data export - Failed to create output file

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Posted on by MariusW

Hi,

I am trying to do an export and import of data between environments.
I used the CMT (DataUtilityTool.exe/CRM Configuration Migration Tool) to make a schemafile,

and I used the "pac data export" command to retrieve the data, but after running for a long time (14:30h ish) and finishing exporting all records, it fails, giving me "datastream is to long" when trying to write to file (highlighted line in picture, it's norwegian):

Maybe I'm abusing the tool with exporting too much, but I tought this was an unexpected error because it is finished exporting all data from the database?

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RiadMokhtari 7 on at

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Re: Power Platform CLI data export - Failed to create output file

Hello,

I got this error message with Migration Data Utility
someone has encounter this ?

DataMigrationUtility.Export Information 8 27/02/2024 10:52:16 Found 374863 rows for comp_prix entity
DataMigrationUtility.Export Information 8 27/02/2024 10:52:16 Processing Prix rows for 374863 to export stream
DataMigrationUtility.Export Information 8 27/02/2024 10:52:42 Exporting of files is disabled. Skipping
DataMigrationUtility.Export Information 8 27/02/2024 10:52:42 Entity Export Process Complete
DataMigrationUtility.Export Information 8 27/02/2024 10:52:42 Writting output file : C:\WINDOWS\TEMP\5afszgz3.oms\data.xml
DataMigrationUtility.Export Error 2 27/02/2024 10:53:36 Message: Exception Raised when Serializing Microsoft.Xrm.Tooling.Dmt.DataMigCommon.DataModel.Data.entities
Source : mscorlib
Method : CreateStringFromEncoding
Date : 27/02/2024
Time : 10:53:36
Error : Une exception de type 'System.OutOfMemoryException' a été levée.
Stack Trace : à System.String.CreateStringFromEncoding(Byte* bytes, Int32 byteLength, Encoding encoding)
à System.Text.UTF8Encoding.GetString(Byte[] bytes, Int32 index, Int32 count)
à Microsoft.Xrm.Tooling.Dmt.DataMigCommon.Utility.Helper.Serialize[T](Object objToSerialize)
======================================================================================================================
DataMigrationUtility.Export Error 2 27/02/2024 10:53:36 Failed to create output file
DataMigrationUtility.Export Information 8 27/02/2024 10:53:36 *********************************************************
DataMigrationUtility.Export Information 8 27/02/2024 10:53:36 Error : No Valid Data Found to export
DataMigrationUtility.Export Information 8 27/02/2024 10:53:36 *********************************************************
DataMigrationUtility.Export Information 8 27/02/2024 10:53:36 ** EXIT EXPORT PROCESS FAIL **
DataMigrationUtility.Export Information 8 27/02/2024 10:53:36 *********************************************************
MariusW 8 on at

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Re: Power Platform CLI data export - Failed to create output file

Here is the command I used:
pac data export -sf .\allCustomComponents.xml -df data.zip -env **** -v
I was running it using a powershell terminal in VS Code and the power platform tool extension.
And I have trusted the folders I'm working in, in VSC. If that helps?

I will try using the full path from root for -sf and -df and using the external powershell as admin.
cchannon 4,702 Super User 2025 Season 1 on at

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Re: Power Platform CLI data export - Failed to create output file

Try running the cmd prompt (or pshell) as Admin - the folder you're trying to write to might be permission trimmed.

If that doesn't work, make sure you're providing a valid path for the destination file. Remember that the -df parameter expects you to provide the full path to the zip to write, including its filename and extension.
MariusW 8 on at

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Re: Power Platform CLI data export - Failed to create output file

Checked it now, and there was no other usefull information, i included the "--verbose" flag in my command as well. it seams like the entity export process was successful but it cant write it to file.
cchannon 4,702 Super User 2025 Season 1 on at

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Re: Power Platform CLI data export - Failed to create output file

Your assumption sounds like the same one I'd make. Have you checked the log file to see if there is more useful error messaging there?