While importing a patch (unmanaged) solution we got the below error –
“Solution ‘abc_Configuration’ failed to import: Solution manifest import: FAILURE: Solution patch with version 1.6.1.1 already exists. Updating patch is not supported.”
This is because Dataverse does not allow updating an existing patch solution with the same version number. Dataverse treats patches as immutable once imported. So if a patch already exists in the target environment, we cannot re-import a patch with the same version. Unlike full solutions, patches cannot be updated or overwritten—they must be uniquely versioned.
To fix this we can increase the Patch Version in our source environment. Here we incremented the patch version (from 1.6.1.1 → 1.6.1.2). Exported the patch again and imported it into the target environment.
Dataverse considers each patch version as unique, so increasing the version allows re-import.
Below we can see the new version of the patch imported replacing the old one.
Hope it helps..
Nishant Rana's Weblog 