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Power pages portal migration error

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Posted on by AUKR-551

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Hello,

We recently encountered an issue while migrating solutions from one environment to another in Microsoft Dataverse. Despite having roles such as System Administrator and System Customizer, we ran into the following error message:

"Sorry, the app encountered a non-recoverable error and will need to terminate. The exception details have been captured and will be forwarded to the development team, if telemetry has been enabled. Exception Id: 55693c3b-61f0-4013-b479-f96b9e444a10, Exception Type: System.NullReferenceException."

After diving into the log file, we noticed repeated lines indicating a missing privilege:

"Principal user (Id=[User Id], type=8, roleCount=4, privilegeCount=145, accessMode='0 Read-Write', AADObjectId=[AAD Id], MetadataCachePrivilegesCount=10423, businessUnitId=[Business Unit Id]), is missing prvReadSolution privilege (Id=[Privilege Id]) on OTC=7100 for entity 'solution' (LocalizedName='Solution'). context.Caller=[Caller Id]. Consider adding missed privilege to one of the principal (user/team) roles.|EXCEPTION: System.ServiceModel.FaultException`1[Microsoft.Xrm.Sdk.OrganizationServiceFault]"

Any inputs are greatly appreciated.

Thanks

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Power Apps portals

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SaiRT14 1,990 Super User 2025 Season 2 on at

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Pls try the following:

Step 1: Verify the prvReadSolution privilege in assigned roles (System Administrator, System Customizer) in the target environment.

Step 2: Grant a custom role with Read access on Solution if necessary.

Step 3: Confirm the user’s Business Unit and security role assignment.

Step 4: Check the user’s Dataverse license and Read-Write access mode.

Step 5: Clear cache and restart the migration process.

Step 6: Enable telemetry for further diagnostics if required.

if you need more details, pls let me know. Thanks

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