Getting "cannot find Symbol" in Java project in IntelliJ

I make this call to a static singleton instance from the class `GameManager.java`. ``` HUD.getInstance().update(timeDelta); ``` `HUD.java` contains the `HUD` class as well as two other related classes, `HUDTextElement` and `HUDElement`. All the classes are in the same root path `../src/org/mypackage`. However, when compiling this project in IntelliJ I get cannot find Symbol HUD on the line I make the `HUD.getInstance()` call. This exact same code compiles just fine in Eclipse, any idea what the problem is?