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

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

List of available class names can be found in current [edit mode](https://docs.sannybuilder.com/edit-modes)'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