Error about Extensions

Help
1

Hi all,

I got the file from my friend.
I have this issues when open it on my computer.

image
image891×399 8.14 KB

When i check by this way, i can see name extensions “isNullOrEmpty” below.

image
Please help me in learn

2

Hi @AKY,

Use the below code
string.IsNullorEmpty(TradeType.Trim)

Regards,
Arivu

3

Thank you @arivu96
But i want to keep the code scource.
Can i fix with other way?

4

TradeType.Trim<>""

5

@arivu96
I see.
I just want to know the program error on my computer but not the other computer.
I do not want to edit anything, because I want to keep it to upload on the ochestrator for other computers to use to run.