Why am I getting “Internal Server Error” running two Odoo instances (same domain but different ports)?

Question

I have two instances of Odoo in a server in the cloud. If I make the following steps I get \"Internal Server Error\":

1. I make login in the first instance (

Answer 1

Try following changes in:

openerp/addons/base/ir/ir_http.py

In method _handle_exception somewhere around line 140 you will find this piece of code:

attach = self._serve_attachment()
if attach:
    return attach

Replace it with:

if isinstance(exception, werkzeug.exceptions.HTTPException) and exception.code == 404:
    attach = self._serve_attachment()
    if attach:
        return attach