[Error] IDA Pro "Please refer to the manual to find appropriate actions"

IDA Pro toast error message like "Please refer to the manual to find appropriate actions" that can be confuced meaning of error.

Problem?

I got this error when i modified some IDA pro stack value

It shows followed by error message "positive SP value has been found". But not this time

In conclusion, I fixed this problem by modifying call parameter type.

before the function call, it pushed twice. but in call function has 6 parameters -> (I fix 6 -> 2 parameter) then it works. 

 

 

How to fix? :

1) we cusor point to start of function

2) right click and click "Set Type"

3) fix it like this

from: int __cdecl sub_10001234 (int, wchar_t, int, int, int, int)

to: int __cdecl sub_10001234 (int, wchar_t)

 

ida pro recognized it function has 6 param, but it's bug I think

 

+

hex-rays reffered  

Set operand type

specified type on the cursor.

It must be entered as a C declaration. the tool itself does not use the operand type information.
However, it can be used by the Hex-Rays decompiler plugin. Setting operand type is most useful in case of indirect calls: the decompiler will use the type information to determine the input parameters to the call instead of guessing, which can make the decompiled code better.

declaration example : int (*func)(int param1, char param2);

Set function/item type

cursor on a name and edit it. or function type, (if there is a function) item type edit them.

example of a function declaration:
   int main(int argc, const char *argv[]);

To delete a type declaration, please enter an empty string.
IDA supports the user-efined calling convention. In this calling convention, the user can explicitly specify the locations of arguments and the return value. For example:
   int __usercall func@<ebx>(int x, int y@<esi>);