How can I read variables from another object?

Question

Why doesn't it work?

var enemy_lives = get_node("enemy2").lives
    if enemy_lives < 1:
        print("Hello")

Debugger:
Invalid operands 'Nil' and 'int' in operator '<'.

The script at enemy is:
var lives = 100

I look forward to any help.

Comments

Yes you can... i do it all the time.

make sure you spelled everything correctly and that the path to the enemy node is valid( the enemy_lives variable is in the parent node of the enemy node and that the path is indeed a valid one and that you get the enemy node by doing that

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It I've written everything right, but it still doesn't work.

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Example node hirarchy : Parent/Child/GrandChild

In GrandChild:

var life = 1.0

In Parent:

var grand_child_life = $Child/GrandChild.life
print(grand_child_life)
Output: 1.0

In Parent:

var armor = 2.0

In GrandChild:

var parent_armor = get_node("../..").armor
print(parent_armor)
Output: 2.0

This will always work with that particular hirarchy.

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Yes this works, but < does not work

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Upload project file, I'll give it a quick look.

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Another possibility is that you are doing both the initialization of the variable and the access to it inside the _ready functions of the objects. If this is the case, it is possible that the code assigning the value runs after the code that access it.

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In the case of what Artium Nihamkin said, check your node hirarchy and make sure the node, that initializes the variable enters the scene tree first.

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Thank you for your help, I have solved the problem.