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# 0079: Invalid parameter in Alloc command

The first parameter in the `Alloc` [command](/language/instructions/built-in-commands.md#alloc) is not a [global variable](/language/data-types/variables.md#global-variables). This command only works with global variables.

**Possible solutions:** provide a global variable:

```
Alloc(10@, 10) // error
Alloc($var, 10) // OK
```