> For the complete documentation index, see [llms.txt](https://docs.sannybuilder.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sannybuilder.com/troubleshooting/errors/0025.md).

# 0025: Incorrect counter range

A `FOR` [loop](/language/control-flow/loops.md#for-end) gets an invalid range of values to iterate. It may happen when

* in `FOR..to` the initial value is greater than the final one

or

* in `FOR..downto` the final value is greater than the initial one.

**Possible solutions:** provide a correct range for the loop:

```
FOR 0@ = 0 to 5
    
END

FOR 0@ = 5 downto 0
    
END
```