> 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/0115.md).

# 0115: Invalid variable name. Name is reserved by another class or function

Compiler found a [variable](/language/data-types/variables.md) name that matches a reserved word, or another [class](/language/instructions/classes.md) or [function](/language/functions.md). Each variable must be unique.

List of available class names can be found in current [edit mode](/edit-modes.md)'s classes.db file.

List of other reserved words can be found in compiler.ini located in Sanny's data directory.

```cpp
int car // Error: car is defined in classes.db
int inc // Error: inc is defined in compiler.ini
```

#### Possible solutions:

* rename the variable to give it a unique name