abbyy - "The RPC server is unavailable" Error on Azure Could Server 2019

Question

This is regarding Abbyy Setup issue that we are facing on a Azure Cloud Machine which is a Windows Server 2019 VM.

We followed the Admin Guide for Reader 12, the "Manual Runtime Installation Steps" were followed for the setup. The Bin64, Data and Inc folders are copied into a directory which will be later used while registering FREngine.dll on the OS. We have not done the Abbyy SDK installation.

We have VM setup locally which is a Windows Server 2019 VM image. On this setup we are able to Register the FREngine.dll successfully using regsvr32 command. Also we don’t see any issue and is working, w.r.t reading OCR/Barcode values successfully through Abbyy FineReader.

ISSUE

The issue is on the Azure Cloud System [VM Windows Server 2019], where we are able to Register the FREngine.dll successfully using regsvr32 command. However even with the successful Registration of FREngine.dll, when we try to initialize the FREngine, we are getting an exception "Invalid Engine instance" during the call to InitializeEngine( ) with all the Required parameters set.

// Create the abbyy engine instance in outproc process, 
// as its recommended by Abbyy for 64-bit process

outProcLoader = new OutprocLoader();
if (outProcLoader != null)
     engine = outProcLoader.InitializeEngine(AbbyyEngineUtils._strProjectId,
                                             engLicensePath, 
                                             AbbyyEngineUtils._strEngPwd, 
                                             "", "", true);
                

Here we have a license file which is also copied into the location where FREngine.dll is present.

Due to this initial Step failure Abbyy Logs could not be generated from the codebase. However we see a log file that gets generated from Abbyy in the path “C:ProgramDataABBYYSDK12FineReader Engine” at this point of failure which states as follows:

10552 :ABBYY Licensing Service is unavailable: The RPC server is unavailable.

We also we additionally tried running the Abbyy SDK’s Sample applications on this machine. This also fails with the above error during Abbyy Engine Initialization.

How can this be resolved?

Answer 1

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