when [timer v] > (10)
when [loudness v] > (10)
(loudness)
<touching [edge v] ?>

NoodlesAdun wrote:

Hello, I was trying to convert a project using leopard but it keeps giving the error message “Cannot read properties of undefined (reading ‘0’)”.
I'm not using any unsupported blocks or extensions, so does anyone know where I've gone wrong?
the project url is: https://scratch.mit.edu/projects/714577157

{
  "isStage": false,
  "name": "editor",
  "variables": {
    "W_1Y0o*^b}}4=Y+cjm2g": ["tileGridX", 8],
    "Vjh+7?#YS@#6q-B-/@%T": ["tileGridY", 8],
    "rYY+5aWXjq/pBK8^Gt}w": ["tileIndex", 169],
    "}h`kH)KZh-HrN9g!t-Ny": ["tile", "2"],
    "0?:.QV{uMFG;@i]L!h1n": ["brush", "0"],
    "7De62Pt(pTCegwvxFOvY": ["brush1", 1],
    "dx(wx8v7)/y!iWIhW1CH": ["brush2", 1],
    "]LIbaT9ymB}x1antS-|d": ["brush3", 10],
    "NkJRP6FQdQ3YU#Aei/=r": ["tileGridX", 0],
    "(_.u_-_ZB09^R`v2~*.K": ["tileGridY", 0],
    "aGQ*p%}CAQLiF45ZB6n~": ["tileIndex", 0],
    "1{y0BG5T,ZjEF4{Kgl#t": ["tile", 0],
    "@pi?X+CgpM=SZ[B4~`}q": ["brush4", 3],
    "^VrYP)X.I;MP}r6D2FYe": ["brush5", 0],
    "_qt3@[rs*m=(`ZfC-T#|": ["brush6", 9],
    "OU,k{M/7-Q4|=+kuC3SY": ["brush#", "2"],
    "t1cz`Jspd|;lIPxKu(vK": ["brush7", 0]
  },
  // etc...
}

PullJosh_Test wrote:

NoodlesAdun wrote:

Hello, I was trying to convert a project using leopard but it keeps giving the error message “Cannot read properties of undefined (reading ‘0’)”.
I'm not using any unsupported blocks or extensions, so does anyone know where I've gone wrong?
the project url is: https://scratch.mit.edu/projects/714577157

Great question! I did some digging and found that there are two separate issues that both cause this error.

Problem 1: The first is that you have a variable and a list with matching names. This is something Leopard should know how to handle, but it currently doesn't. That's our fault, and it should work, but in the meantime you can always rename your lists to make them not match the variables, and that will solve this issue.

Problem 2: The second problem is a little weirder. It seems like in the “editor” sprite, the variables tileGridX, tileGridY, tileIndex, and tile are each defined twice. This isn't visible at all in the Scratch editor, but you can see it when you open up the JSON code under the hood. I have no idea how this happened–I don't think it's supposed to be possible.

Here's an excerpt from your project's underlying JSON code so that you can see what I mean:

{
  "isStage": false,
  "name": "editor",
  "variables": {
    "W_1Y0o*^b}}4=Y+cjm2g": ["tileGridX", 8],
    "Vjh+7?#YS@#6q-B-/@%T": ["tileGridY", 8],
    "rYY+5aWXjq/pBK8^Gt}w": ["tileIndex", 169],
    "}h`kH)KZh-HrN9g!t-Ny": ["tile", "2"],
    "0?:.QV{uMFG;@i]L!h1n": ["brush", "0"],
    "7De62Pt(pTCegwvxFOvY": ["brush1", 1],
    "dx(wx8v7)/y!iWIhW1CH": ["brush2", 1],
    "]LIbaT9ymB}x1antS-|d": ["brush3", 10],
    "NkJRP6FQdQ3YU#Aei/=r": ["tileGridX", 0],
    "(_.u_-_ZB09^R`v2~*.K": ["tileGridY", 0],
    "aGQ*p%}CAQLiF45ZB6n~": ["tileIndex", 0],
    "1{y0BG5T,ZjEF4{Kgl#t": ["tile", 0],
    "@pi?X+CgpM=SZ[B4~`}q": ["brush4", 3],
    "^VrYP)X.I;MP}r6D2FYe": ["brush5", 0],
    "_qt3@[rs*m=(`ZfC-T#|": ["brush6", 9],
    "OU,k{M/7-Q4|=+kuC3SY": ["brush#", "2"],
    "t1cz`Jspd|;lIPxKu(vK": ["brush7", 0]
  },
  // etc...
}

Under the hood, variables are given ids that are basically just strings of garbage (in green above). What's weird is that there are two variables called tileGridX, two variables called tileGridY, and so on. (But there is just one of each “brush” variable as expected.) This obviously makes Leopard very confused, and causes the error. Fixing this one seems harder because I don't know how it even happened in the first place.

NoodlesAdun wrote:

It's possible that when I was editing the project with turbowarp it somehow duplicated the variables, I'll try remaking the sprite and renaming the lists and hopefully it will work then. Thanks for the help!

cdawgscratch wrote:

leapord is so cool but its very laggy on my device for some reason, do you think there might be something causing that?

Leopard translator error wrote:

Argument sandboxId for data.sandboxId is missing.

A-MARIO-PLAYER wrote:

I'm not sure why nobody has posted this. My project keeps failing with:

Leopard translator error wrote:

Argument sandboxId for data.sandboxId is missing.

Cannot read properties of undefined (reading ‘0’)

WesleyMcGinnOpen in Ocular wrote:

(#586)
This leopard converter is really cool! I am trying to learn more JavaScript with the manual translations page but I noticed that there was no translation available for a cloud variable. (Link) I also noticed that fixing this issue is not on the upcoming improvements list. What alternative methods are there for simple data transfer across the cloud in JavaScript? (Suppose I have a variable called “variable” and I want it to be set equal to 12 on all devices on a website. How would I do that?)