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prasad_deokar_steepgraph_com's avatar
prasad_deokar_steepgraph_com
Ideator I
1 day ago

Conversion Task failing due to 'License text is empty' error

Hello Team,
 I need help with Aras CAD to PDF conversion issue.

Conversion task was working earlier, but it is now failing with the below license-related error in Conversion Task errors

Event Handler: InvokeStandardConverter 
Event Type: OnConvert
Status: Failed
Event Handler Error:

Aras.ConversionFramework.Exceptions.EventCallbackErrorException: See inner exception for details: ---> System.Exception ---> System.ServiceModel.FaultException: Error occurred during conversion: Exit Code:1

Command line arguments were: --sc_compute_bounding_boxes "All" --input_pdf_template_file "C:\Aras_Server\12_AutoLEAN\Hoops_Converter\Templates\Blank_Template_L.pdf" --output_pdf "C:\Aras_Server\12_AutoLEAN\ConversionServer\temp\B60C9C5C4F184FA4AB4231D949D24761\shock spring adjustment NUT.pdf" --output_png "C:\Aras_Server\12_AutoLEAN\ConversionServer\temp\B60C9C5C4F184FA4AB4231D949D24761\shock spring adjustment NUT.png" --output_png_resolution "150x150" --output_scs "C:\Aras_Server\12_AutoLEAN\ConversionServer\temp\B60C9C5C4F184FA4AB4231D949D24761\shock spring adjustment NUT.scs" --output_xml_assemblytree "C:\Aras_Server\12_AutoLEAN\ConversionServer\temp\B60C9C5C4F184FA4AB4231D949D24761\shock spring adjustment NUT.xml" --output_prc "C:\Aras_Server\12_AutoLEAN\ConversionServer\temp\B60C9C5C4F184FA4AB4231D949D24761\shock spring adjustment NUT.prc" --background_color "1.0, 1.0, 1.0" --output_logfile "C:\Aras_Server\12_AutoLEAN\ConversionServer\temp\B60C9C5C4F184FA4AB4231D949D24761\shock spring adjustment NUT" --input "C:\Aras_Server\12_AutoLEAN\ConversionServer\temp\B60C9C5C4F184FA4AB4231D949D24761\shock spring adjustment NUT.par"

View the following log for details:

License log

06/06/2026 09:39:14: Consume ArasCadConverter data was started.

06/06/2026 09:39:15: Server was unable to process request. ---> Aras.Server.Licensing.FeatureLicenseValidationException ---> The feature license you are attempting to use has encountered a restriction.

Converter log

Converter output

License text is empty

at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)

at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)

at System.ServiceModel.Channels.ServiceChannelProxy.TaskCreator.<>c__DisplayClass1_0.<CreateGenericTask>b__0(IAsyncResult asyncResult)

--- End of stack trace from previous location ---

at Aras.Server.Conversion.Activities.RunConvertOperationHandler.ExecuteConvertOperationAsync(ConversionServiceClient client, String task, ConversionOperationContext context, Uri conversionServerUrl, ProtocolInfo protocolInfo, IAuthenticator authenticator, Boolean isFirstTry) in C:\Builds\CI\40942\Innovator.git\CompilableCode\Aras.Server.Conversion\Activities\RunConvertOperation\RunConvertOperationHandler.cs:line 135

--- End of inner exception stack trace ---

at Aras.ConversionFramework.Models.ConversionTask.<>c__DisplayClass40_0.<OnConvertCompleted>b__1() in C:\Builds\CI\40942\Innovator.git\CompilableCode\ConversionFramework\ConversionManager\Models\ConversionTask.cs:line 254

at Aras.ConversionFramework.Models.ConversionTaskEventHandler.Execute(ConversionTask task) in C:\Builds\CI\40942\Innovator.git\CompilableCode\ConversionFramework\ConversionManager\Models\ConversionTaskEventHandler.cs:line 166

--- End of inner exception stack trace ---

at Aras.ConversionFramework.Models.ConversionTaskEventHandler.Execute(ConversionTask task) in C:\Builds\CI\40942\Innovator.git\CompilableCode\ConversionFramework\ConversionManager\Models\ConversionTaskEventHandler.cs:line 170

at Aras.ConversionFramework.Models.ConversionTask.ExecuteEventHandlers(ConversionTaskEventType eventType) in C:\Builds\CI\40942\Innovator.git\CompilableCode\ConversionFramework\ConversionManager\Models\ConversionTask.cs:line 319


This is happening during CAD to PDF conversion using the Conversion Server/HOOPS converter. Though I have already activated all required licenses, but the conversion task is still failing.

Please revert me back if somebody has already faced this.

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1 Reply

  • mconstantin_aras_com's avatar
    mconstantin_aras_com
    Creator I
    22 hours ago

    Hello,

    I have limited experience with this specific setup, but based on what I’ve seen, the issue may be related to the converter licensing rather than the main Innovator license.

    The Conversion Server framework itself relies on the Innovator license, but the CAD/HOOPS converter has its own license mechanism, which is configured separately.

    From your error:
    License text is empty
    FeatureLicenseValidationException

    it looks like the converter is unable to read its license at runtime.
    what I would check first:

    • Verify that the HOOPS license file exists on the Conversion Server machine and is not empty
    • Check that the path to the license file is correctly configured (in the converter config)
    • Ensure the account running the Aras Agent Service has read access to the license file

    Regards

    Michael