ReferenceError: 'Java' is not defined

[AndroidMaster25]

I'm getting this error when running the script. Yes, I fill out the correct game name

node frida.js
[!] Message error: {
  type: 'error',
  description: "ReferenceError: 'Java' is not defined",
  stack: "ReferenceError: 'Java' is not defined\n    at <eval> (/script1.js:2)",
  fileName: '/script1.js',
  lineNumber: 2,
  columnNumber: 1
}
[*] Script erfolgreich geladen.

[mawo95]

Do you have the latest Frida Version installed?
Which node js Version do you use and do you use Bluestacks?

[AndroidMaster25]

I used the following versions

Frida 17.0.7
Node.js 22.16.0
Bluestacks 5.22.80.1027

[mawo95]

You seem to use a script1.js File somewhere. Die you modify the frida.js (added your name of the App)

[AndroidMaster25]

You seem to use a script1.js File somewhere. Die you modify the frida.js (added your name of the App)

Yes, I added name "Rush! Knights". I don't have script1.js, I searched everywhere but I can't find that file.

Can you please try if it works for you with Rush! Knights? https://play.google.com/store/apps/details?id=com.gaimstudio.knightage&hl=en

[mawo95]

Yes i will try and let you know.
I think it might be an issue with versions or setup so in case it works for me i can send you the output so you can continue with that.

I am currently in Holidays without pc, but will add a comment Here once home and tried

[AndroidMaster25]

Ok, no problem. I never got it work to be honest. Also the instructions was not clear at all but luckily, I had some knowledge of Frida and Android environment

[mawo95]

Alright, i took a look and it seems to be an issue with the installation of Frida.
Please check if you insalled Java (also on PATH in the system variables) and check the frida.js if its actually the one from my repo (it might have generated a "trash" one after a failed run

[jerr3n]

+1, this is happening to me too. java is on my main machine, but not my emulator.
background:
using android's stock emulator with frida-server on it, and running it. whenever i run frida -U -f com.roblox.client --pause, i have a few seconds to execute node frida.js. i get the same error above (also visible below)

[!] Message error: {
  type: 'error',
  description: "ReferenceError: 'Java' is not defined",
  stack: "ReferenceError: 'Java' is not defined\n    at <eval> (/script1.js:2)",
  fileName: '/script1.js',
  lineNumber: 2,
  columnNumber: 1
}
[*] Script erfolgreich geladen.

the script is the exact same except for this line, const target = processes.find(p => p.name === "com.roblox.client");.

[AndroidMaster25]

Alright, i took a look and it seems to be an issue with the installation of Frida. Please check if you insalled Java (also on PATH in the system variables) and check the frida.js if its actually the one from my repo (it might have generated a "trash" one after a failed run

Java is already installed and I'm 100% certain I'm using this repo. Can you please make quick video of the dumping process? I need to be sure it is working for you

[mawo95]

Please contact me on discord, i can send a Video there which i will then also Upload at this repo.

Username is @mawocoder
We can Double check ur Installation also and usage (will also add more details in the readdme if there are issues)

[mawo95]

To everyone struggeling with the Java error or some others:

Make sure to use Node js version v20.11.0
And the frida npm package version frida@16.5.6

@hayate001 @jerr3n @AndroidMaster25