How to capture error from invoke code activity (exe file) & store it in argument

[pravin_bindage]

Main.xaml (14.2 KB)
Program.cs (3.9 KB)
In above workflow i’m adding a sign image to pdf it works fine, but I wants to capture the (error msg / sucess code) from exe file & save it in variable.
I attached Workflow & code file above can anybody suggest me changes in it?

@Anil_G @Sudharsan_Ka @supermanPunch @Kaviyarasu_N @fernando_zuluaga @ppr @Yoichi

[supermanPunch (Arpan)]

Hi @pravin_bindage ,

If you want to capture the Error which might happen in the Invoke Code activity, then you would have to Enclose the Statements in a Try Catch Block and in the Catch you would need to assign the Exception variable outside of the activity using an out argument :

Example :

Try
    Process.Start("http://www.microsoft.com")
Catch ex As Exception
    out_Exception = ex
End Try

Here, out_Exception is a System.Exception type argument which has a direction Out

[pravin_bindage]

I used invoke to run exe file. If error is in exe file execution then what can we do?

[Yoichi]

Hi,

Can you check the following sample? This output stabdard output and standard error of the process.

Dim p As New Process()
p.StartInfo.FileName = System.IO.Path.Combine(System.Environment.GetEnvironmentVariable("USERPROFILE"),"AppData\Local\Programs\UiPath\Studio\UiPath.LicenseTool.exe")
p.StartInfo.Arguments = "info"
p.StartInfo.UseShellExecute = False
p.StartInfo.RedirectStandardOutput = True
p.StartInfo.RedirectStandardError=True

p.Start()

stdout = p.StandardOutput.ReadToEnd()
stderr = p.StandardError.ReadToEnd()
p.WaitForExit()
p.Close()

Sample20230516-1a.zip (2.6 KB)

Regards,

[pravin_bindage]

Dim process As New Process()
process.StartInfo.FileName = Chr(34) + ExePath + Chr(34)
process.StartInfo.Arguments = Chr(34) + InputFile + Chr(34)
process.StartInfo.RedirectStandardOutput = True
process.StartInfo.RedirectStandardError = True
process.StartInfo.UseShellExecute = False
process.Start()
process.WaitForExit()

Dim exitCode As Integer = process.ExitCode
Dim outputMessage As String = process.StandardOutput.ReadToEnd()
Dim errorMessage As String = process.StandardError.ReadToEnd()

If exitCode = 0 Then
    ' Successful execution
    ' Store outputMessage in outputVariable
    outputVariable = outputMessage
Else
    ' Error occurred
    ' Store errorMessage in errorVariable
    errorVariable = errorMessage
End If

Done with this code now it capturing error