Path1 cannot be NULL error received when calling the DeleteFingerprints Action

Abstract

When calling the Datacap DeleteFingerprints function, the following error is in the rss log:
System.ArgumentNullException: Value cannot be null. Parameter name: path1
at System.IO.Path.Combine(String path1, String path2)
at Datacap.Libraries.FingerprintMaintenance.Actions.DeleteFingerprint(String ID)

Signs

The application aborts when trying to delete fingerprint files and fingerprints from the fingerprint database. The fingerprint is deleted from the database, but the fingerprint files are not deleted from the fingerprint folder.

Reason & Solution


The path to the fingerprint folder does not exist.

To resolve this add the following call to the application:

SetFingerprintDir("@APPPATH(fingerprint)") --to set the path to the folder that contains the fingerprint files.

 

Cdbl type mismatch error from fingerprint service with IBM Datacap Taskmaster Capture

Cdbl type mismatch error from

fingerprint service with IBM

Datacap Taskmaster Capture

Abstract

The fingerprint service occasionally aborts with a type mismatch Cdbl error.

Symptom

The aborted task's RRS log may contain logging similar to the following:

Matching with the Fingerprint WebService...

exception in call script

[...]

Script Error:

Error: Microsoft VBScript runtime error

Description: Type mismatch: 'Cdbl'

Cause

Specific images may cause this error in the fingerprint service. It has been resolved in Taskmaster 8.0 and later.

Resolving the problem

This error can be worked around by re-scanning the problem image or batch and then reprocessing. This type of abort should not be frequent, but may be seen daily in high volume environments.