topic Re: BP Upgrade 6.5 to 7.3 - Recognize Text in Range - Read Stage no longer working in Product Forum

BP Upgrade 6.5 to 7.3 - Recognize Text in Range - Read Stage no longer working

TrevorMclellan21 — Tue, 03 Feb 2026 23:26:27 GMT

The above read stage is failing in BP 7.3 with the following exception.

ERROR: Internal : Failed to perform step 1 in Read Stage 'Read Records' on page 'Generic - Read Table (Recognize Text)' - The constructor to deserialize an object of type 'BluePrism.CharMatching.EmptyFontException' was not found.

Any help with this issue would be awesome.

Thanks

Re: BP Upgrade 6.5 to 7.3 - Recognize Text in Range - Read Stage no longer working

LeonardoSQueiroz — Wed, 04 Feb 2026 00:39:17 GMT

Hello TrevorMclellan21!

https://support.blueprism.com/en/support/solutions/articles/7000095011-bp-cloud-error-the-constructor-to-deserialize-an-object-of-type-blueprism-charmatching-emptyfontexc

Please check if the article above helps.

Regards,

Re: BP Upgrade 6.5 to 7.3 - Recognize Text in Range - Read Stage no longer working

TrevorMclellan21 — Wed, 04 Feb 2026 17:25:41 GMT

Hi Leonardo,

Thanks that article was helpful. So it seems like BP 7.3 no longer allows the font field to be left blank. Is this correct? It will be a large change required to provide a font for each of the elements so I am wondering if there is any way to get BluePrism 7.3 to allow for no font to be provided?

Thanks