pexpect.spawn issue on run

[ssduplantis]

I've downloaded all the packages and get a pexpect error when I run main.py. See below. Thanks for taking a look!

PS C:\Users*\Teenage-AGI> & C:/Python311/python.exe c:/Users/*/Teenage-AGI/main.py
Traceback (most recent call last):
File "c:\Users*\Teenage-AGI\main.py", line 1, in
import agent
File "c:\Users*\Teenage-AGI\agent.py", line 7, in
from langchain.text_splitter import NLTKTextSplitter
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain_init_.py", line 6, in
from langchain.agents import MRKLChain, ReActChain, SelfAskWithSearchChain
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain\agents_init_.py", line 2, in
from langchain.agents.agent import (
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain\agents\agent.py", line 15, in
from langchain.agents.tools import InvalidTool
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain\agents\tools.py", line 8, in
from langchain.tools.base import (
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain\tools_init_.py", line 4, in
from langchain.tools.bing_search.tool import BingSearchResults, BingSearchRun
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain\tools\bing_search\tool.py", line 4, in
from langchain.utilities.bing_search import BingSearchAPIWrapper
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain\utilities_init_.py", line 5, in
from langchain.utilities.bash import BashProcess
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain\utilities\bash.py", line 10, in
class BashProcess:
File "C:\Users*\AppData\Roaming\Python\Python311\site-packages\langchain\utilities\bash.py", line 29, in BashProcess
def _initialize_persistent_process(prompt: str) -> pexpect.spawn:
^^^^^^^^^^^^^
AttributeError: module 'pexpect' has no attribute 'spawn'