not found "eosjs" file

[licongxing]

there is not "eosjs" file in the project.
Here's the code in "eos.js" file:
import Plugin from '../Plugin'; import * as PluginTypes from '../PluginTypes'; import {Blockchains} from '../../models/Blockchains' import * as NetworkMessageTypes from '../../messages/NetworkMessageTypes' import StringHelpers from '../../util/StringHelpers' import Error from '../../models/errors/Error' import Network from '../../models/Network' import Account from '../../models/Account' // const ecc = require('eosjs-ecc'); import AlertMsg from '../../models/alerts/AlertMsg' import * as Actions from '../../store/constants'; import Eos from 'eosjs' let {ecc, Fcbuffer} = Eos.modules;
but I don't find "eosjs" file.