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Import failed: The DELETE statement conflicted with the REFERENCE constraint

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Posted on by Stewie25

Hi all,

I am stuck on deploying a solution and getting this error.

Import failed: The DELETE statement conflicted with the REFERENCE constraint "FileAttachment_WebResource_ContentFileRef". The conflict occurred in database "db_crmcorenam_20241218_01384322_2286", table "dbo.WebResourceBase", column 'ContentFileRef'. The statement has been terminated.

Need help on resolving this.
Thank you.

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Dynamics 365 general

Power Platform integration

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Holly Huffman 6,530 Super User 2025 Season 2 on at

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Good morning, afternoon, or evening depending on your location!

The error indicates that a DELETE operation is conflicting with a REFERENCE constraint in the database.
Specifically, the FileAttachment_WebResource_ContentFileRef constraint is preventing the deletion of a record in the WebResourceBase table because it is referenced by another table.

To resolve this issue, follow these steps:

Identify the Dependent Records:

Use a SQL query to identify the records in the FileAttachment table (or any related table) that reference the record you are trying to delete in the WebResourceBase table.

Example query:
SELECT *
FROM dbo.FileAttachment
WHERE ContentFileRef = '<ID_of_the_record_in_WebResourceBase>';

Delete Dependent Records:

Once you identify the dependent records, delete them first to remove the reference.

Example query:
DELETE FROM dbo.FileAttachment
WHERE ContentFileRef = '<ID_of_the_record_in_WebResourceBase>';

Retry the Deployment:

After removing the dependent records, retry the solution deployment.

Consider Using Cascading Deletes:

If appropriate for your scenario, you can configure the foreign key relationship to use ON DELETE CASCADE. This will automatically delete dependent records when the parent record is deleted. However, use this option cautiously, as it can lead to unintended data loss.

Validate the Solution:

Ensure that all references and dependencies are correctly handled in your solution to prevent similar issues in the future.

Hope this helps some!

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Stewie25 12 on at

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Hi @Holly Huffman, thanks. I'm not trying to delete anything. I'm deploying a solution update. Is there any way to determine which web resource is causing the issue?

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André Arnaud de Cal... 300,915 Super User 2025 Season 2 on at

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Hi Stewie,

Can you provide some more details please? Is this the first time you install this solution on this environment? Are you importing a managed or unmanaged solution? Can you import the solution in other environments?

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Stewie25 12 on at

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Hi @André Arnaud de Calavon, I am trying to deploy an update to an existing managed solution. I tried doing the update in another environment, and it's working. The difference that I'm seeing is in the environment where the error is showing that the contentfileref column in the web resource entity is not empty and referencing a record in the file attachment entity, whereas in other environments, it's empty.

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Stewie25 12 on at

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Hi @Holly Huffman, tried following your advice but the system is not allowing me to delete a record in the fileattachment entity.

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