Assign: Expression Activity type 'VisualBasicValue`1' requires compilation

[Baker9 (John Smith)]

Hi

I install new rdp (Windows Server 2019 Standard (x64) ) , and want use UiPath,but i get error.

The error:

Assign: Expression Activity type ‘VisualBasicValue`1’ requires compilation in order to run. Please ensure that the workflow has been compiled.

I trying 2 hours, read other “VisualBasicValue`1’” problem, but not success…

Try this other pc, work fine, but older UiPath try… So or rdp problem, or new version UiPath problem…

[Anil_G (Anil Gorthi)]

@Baker9

Please try deleting that sequence and redo…

Check if there are any variables or arguments that you have and replace the inverted comma in the code

Visual basic workflow compilation error

Hi, In windows legacy, it seems double quote is normalized and any double quote characer is accepted. However, at this time, in windows (.net6) ,in fact, only " (0x22) is accepted to express string literal. To make matter worse, it seems to occur only compiling. (Expression validator don’t raise an alert.) FYI, the following is sample for reproducing. The first Assign uses " 0x22 and second Assign uses “ and it fails in compiling. Sample20221013-2.zip (2.1 KB) [image] Regards,

Cheers

[Baker9 (John Smith)]

I find solution:

Need microsoft visual c++

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[postwick (Paul Ostwick)]

Tons of posts on this error already. Please search the forum before making new posts.

It’s related to use of Windows compatibility and your double quotes.