Why does visual studio gives me error when I want to run the GAMS code via C#?

Question

I want to run my GAMS code via c# by GAMS API. when I start Visual studio,I recieve this error in

GAMSWorkspace ws = new GAMSWorkspace();

error: "Expected GAMS system to be 32 bit but found 64 bit instead. System directory: C:\GAMS\win64\25.1"

GAMS and windows are both 64 bit.

Can anybody help me to solve it?

What is unclear about the error message? – Lennart Nov 29 '19 at 13:52 — Lennart, Nov 29 '19 at 13:52
my windows and GAMS both are 64 bit – n.e Nov 29 '19 at 13:56 — n.e, Nov 29 '19 at 13:56

Vogel T. · Accepted Answer · 2019-11-29T17:37:21.773

1

According to https://forum.gamsworld.org/viewtopic.php?t=7828 Lutz says:

Normally this error only occurs if you built your application as a 32bit version explicitly. Could you please check if you still get the error if you select x64 as platform for your program in the configuration manager of Visual Studio?

edited Nov 29 '19 at 17:37

answered Nov 29 '19 at 13:55

Vogel T.

91
5

I change platform In configuration manager, but it still gives this error. – n.e Nov 29 '19 at 13:59
Is GAMS.net4.dll for both 32 and 64 bit? – n.e Nov 29 '19 at 14:54
How is platform target set on project build properties? – Vogel T. Nov 29 '19 at 14:55
Yep. You could try reinstall 64bit version. https://www.gams.com/download/ – Vogel T. Nov 29 '19 at 14:57
I create new project and change platform to x64 and it works. Thanks – n.e Nov 29 '19 at 15:25
1

Sorry Lutz I didn't knew how to proper do it. Fix it – Vogel T. Nov 29 '19 at 17:38

Why does visual studio gives me error when I want to run the GAMS code via C#?

1 Answers1