Using latest version, when trying to send a message, I get an exception "Evaluation failed: t"

[ralphv]

Is there an existing issue for this?

• I have searched the existing issues.

Is this a problem caused by your code, or is it specifically because of the library?

• I have double-checked my code carefully.

Describe the bug.

My code hasn't been touched since 2 years now. Attempted to upgrade to the latest version and when my code tries to send a message, I get Error

"Evaluation failed: t"

If I rollback to 1.34.0 I don't get the error anymore, but have another issue similarly described in another bug, when trying to send a message, it goes through but then for some reason, the session gets logged out with the logged out event...

Expected Behavior

Not to send this error and to actually send the message.

Steps to Reproduce the Bug or Issue

        let response;
        try {
            response = await this.client.sendMessage(to, body);
        } catch (e) {
            console.error(`Failed to send message: ${e instanceof Error ? e.message : JSON.stringify(e)}`);
            return '';
        }

WhatsApp Account Type

Standard

Browser Type

N/A

Operation System Type

Docker + node:slim

Phone OS Type

Android

WhatsApp-Web.js Version

v1.34.2

WhatsApp Web Version

N/A

Node.js Version

v25.2.1

Authentication Strategy

LocalAuth

Additional Context

No response

[tsalesproductions]

When we have this problem, it's usually because the phone number is in the wrong format.
I recommend use payload.from or use .getNumberId and _serialized to send the messages.

const numberData = await client.getNumberId(idUser.includes("@c.us") ? idUser : `55${idUser}`);

if(numberData._serialized){
client.sendMessage(numberData._serialized, 'hello world');
}

[ajrulrn]

When we have this problem, it's usually because the phone number is in the wrong format. I recommend use payload.from or use .getNumberId and _serialized to send the messages.

const numberData = await client.getNumberId(idUser.includes("@c.us") ? idUser : 55${idUser});

if(numberData._serialized){
client.sendMessage(numberData._serialized, 'hello world');
}

still error with that code

[BenyFilho]

You need to debug it, but here are some things you can check
1- Update your lib:

npm install github:pedroslopez/whatsapp-web.js#main

2- Check PR on the Git Project page:
#3972
#3975