Unresolved reference python ошибка

I am using PyCharm to work on a project. The project is opened and configured with an interpreter, and can run successfully. The remote interpreter paths are mapped properly. This seems to be the correct configuration, but PyCharm is highlighting my valid code with «unresolved reference» errors, even for built-in Python functions. Why don’t these seem to be detected, even though the code runs? Is there any way to get PyCharm to recognize these correctly?

This specific instance of the problem is with a remote interpreter, but the problem appears on local interpreters as well.

File | Invalidate Caches… and restarting PyCharm helps.

Tested with PyCharm 4.0.6 (OSX 10.10.3)
following this steps:

1. Click PyCharm menu.
2. Select Project Interpreter.
3. Select Gear icon.
4. Select More button.
5. Select Project Interpreter you are in.
6. Select Directory Tree button.
7. Select Reload list of paths.

Problem solved!

answered May 11, 2015 at 9:27

If you want to ignore only some «unresolved reference» errors, you can also tell it PyCharm explicitly by placing this in front of your class/method/function:

# noinspection PyUnresolvedReferences

answered Dec 18, 2018 at 12:14

answered Dec 28, 2015 at 22:25

I finally got this working after none of the proposed solutions worked for me. I was playing with a django rest framework project and was using a virtualenv I had setup with it. I was able to get Pycharm fixed by marking the root folder as the sources root, but then django’s server would throw resolve exceptions. So one would work when the other wouldn’t and vice versa.

Ultimately I just had to mark the subfolder as the sources root in pycharm. So my structure was like this

-playground
     -env
     -playground

That second playground folder is the one I had to mark as the sources root for everything to work as expected. That didn’t present any issues for my scenario so it was a workable solution.

Just thought I’d share in case someone else can use it.

answered Apr 12, 2016 at 23:10

answered May 14, 2016 at 19:47

None of the answers solved my problem.

What did it for me was switching environments and going back to the same environment. File->Settings->Project interpreter

I am using conda environments.

answered Jul 30, 2019 at 19:59

answered Apr 1, 2016 at 10:25

Geeze what a nightmare, my amalgamation of different StackOVerflow answers:

1. Switch to local interpreter /usr/bin/pythonX.X and apply
2. View paths like above answer
3. Find skeletons path. Mine was (/home/tim/Desktop/pycharm-community-2016.2.3/helpers/python-skeletons)
4. Switch back to virt interpreter and add the skeletons path manually if it didn’t automatically show up.

answered Oct 12, 2016 at 9:02

answered Mar 22, 2017 at 12:46

In my case the inspection error shows up due to a very specific case of python code.
A min function that contains two numpy functions and two list accesses makes my code inspection give this kind of errors.

Removing the ‘d=0’ line in the following example gives an unresolved reference error as expected, but readding doesn’t make the error go away for the code inspector. I can still execute the code without problems afterwards.

import numpy as np
def strange(S, T, U, V):
    d = 0
    print min(np.abs(S[d]), np.abs(T[d]), U[d], V[d])

Clearing caches and reloading list of paths doesn’t work. Only altering the code with one of the following example patches does work:

• Another ordering of the ‘min’ parameters: schematically S U T V but not S T U V or T S U V
• Using a method instead of the function: S[d].abs() instead of np.abs(S[d])
• Using the built-in abs() function
• Adding a number to a parameter of choice: U[d] + 0.

answered Dec 21, 2017 at 13:20

My problem is that Flask-WTF is not resolved by PyCharm. I have tried to re-install and then install or Invalidate Cache and Restart PyCharm, but it’s still not working.

Then I came up with this solution and it works perfectly for me.

1. Open Project Interpreter by Ctrl+Alt+S (Windows) and then click Install (+) a new packgage.

1. Type the package which is not resolved by PyCharm and then click Install Package. Then click OK.

Now, you’ll see your library has been resolved.

answered Mar 19, 2020 at 12:48

In PyCharm 2020.1.4 (Community Edition) on Windows 10 10.0. Under Settings in PyCharm: File > Settings > Project Structure
I made two changes in Project Structure:
main folder marked as source and
odoo folder with all applications I excluded
Screenshot shows what I did.
After that I restarted PyCharm: File > Invalidate Caches / Restart…

Unresolved references error was removed

answered Jul 26, 2020 at 11:05

Invalidating the cache as suggested by other answers did not work for me. What I found to be the problem in my case was that PyCharm was marking init.py files of Python packages as text and thus not including them in the analysis which means python resolving was not working correctly.

The solution for me was to:

Open PyCharm settings
Navigate to Editor -> File Types
Find Python and add __init__.py to the list of python files
or Find Text and delete __init__.py from the list of text files

answered Mar 19, 2021 at 2:18

To add yet another one: None of the solutions involving the Python Interpreter tab helped, however, I noticed I had to set Project Dependencies: In the project that had unresolved reference errors, none of the dependencies were checked. Once I checked them, the relevant errors disappeared. I don’t know why some are checked to begin with and others are not.

answered Aug 5, 2022 at 17:26

answered Sep 3, 2018 at 12:28

I have a project where one file in src/ imports another file in the same directory. To get PyCharm to recognize I had to to go to File > Settings > Project > Project Structure > select src folder and click «Mark as: Sources»

From https://www.jetbrains.com/help/pycharm/configuring-folders-within-a-content-root.html

Source roots contain the actual source files and resources. PyCharm uses the source roots as the starting point for resolving imports

answered Mar 7, 2020 at 22:45

answered Dec 15, 2020 at 5:41

answered Jan 11, 2021 at 12:04

@kelorek works for me, but before, in interpereter paths I had to add some path.
lets say

from geometry_msgs.msg import Twist

is underline as error, then in remote machine in python run:

help("geometry_msgs")

at the end there will be path lets say :

/opt/ros/foxy/lib/python3.8/site-packages/geometry_msgs/__init__.py

so to Your intepreter pycharm path add

/opt/ros/foxy/lib/python3.8/site-packages

Hope it will help You and it helps me

answered Mar 2, 2021 at 0:36

I had the same symptoms. In my instance the problem source was that I had set
idea.max.intellisense.filesize=50 in the custom properties.
I could resolve it by setting it to 100.

Help->Edit Custom Properties

answered May 5, 2021 at 8:19

I have a directory structure

├── simulate.py
├── src
│   ├── networkAlgorithm.py
│   ├── ...

And I can access the network module with sys.path.insert().

import sys
import os.path
sys.path.insert(0, "./src")
from networkAlgorithm import *

However, pycharm complains that it cannot access the module. How can I teach pycham to resolve the reference?

asked Jan 20, 2014 at 14:44

answered Jan 20, 2014 at 17:18

The project I cloned had a directory called modules and was successfully using files from there in the code with import this as that, but Pycharm was unable to jump to those code fragments because it did not recognise the imports.

Marking the module folder in the following settings section as source solved the issue.

answered Sep 29, 2021 at 17:13

Generally, this is a missing package problem, just place the caret at the unresolved reference and press Alt+Enter to reveal the options, then you should know how to solve it.

Although all the answers are really helpful, there’s one tiny piece of information that should be explained explicitly:

• Essentially, a project with multiple hierarchical directories work as a package with some attributes.
• To import custom local created Classes, we need to navigate to the directory containing .py file and create an __init__.py (empty) file there.

Why this helps is because this file is required to make Python treat the directory as containing packages. Cheers!

answered Dec 9, 2019 at 10:19

Install via PyCharm (works with Community Edition). Open up Settings > Project > Project Interpreter then click the green + icon in the screenshot below. In the 2nd dialogue that opens, enter the package name and click the ‘Install Package’ button.

answered Feb 17, 2018 at 14:38

After following the accepted answer, doing the following solved it for me:

File → Settings → Project <your directory/project> → Project Dependencies

Chose the directory/project where your file that has unresolved imports resides and check the box to tell Pycharm that that project depends on your other project.

My folder hierarcy is slightly different from the one in the question. Mine is like this

├── MyDirectory  
│     └── simulate.py  
├── src  
│     ├── networkAlgorithm.py  
│     ├── ...

Telling Pycharm that src depends on MyDirectory solved the issue for me!

answered Sep 4, 2019 at 17:34

1. —> Right-click on the directory where your files are located in PyCharm
2. Go to the —> Mark Directory as
3. Select the —> Source Root

your problem will be solved

answered Jun 27, 2020 at 3:18

answered Aug 17, 2020 at 9:24

answered Jun 26, 2016 at 8:28

answered Apr 24, 2020 at 8:59

I tried everything here twice and even more. I finally solved it doing something I hadn’t seen anywhere online. If you go to Settings>Editor>File Types there is an 'Ignore Files and folders‘ line at the bottom. In my case, I was ignoring 'venv', which is what I always name my virtual environments. So I removed venv; from the list of directories to ignore and VOILA!! I was FINALLY able to fix this problem. Literally all of my import problems were fixed for the project.

BTW, I had installed each and every package using PyCharm, and not through a terminal. (Meaning, by going to Settings>Interpreter...). I had invalidated cache, changed ‘Source Root’, restarted PyCharm, refreshed my interpreters paths, changed interpreters, deleted my venv… I tried everything. This finally worked. Obviously there are multiple problems going on here with different people, so this may not work for you, but it’s definitely worth a shot if nothing else has worked, and easy to reverse if it doesn’t.

answered Jun 26, 2020 at 15:56

For me, adding virtualenv (venv)’s site-packages path to the paths of the interpreter works.
Finally!

answered Jun 17, 2020 at 8:23

I had the same problem and also try so many suggestions but none of them worked, until I find this post (https://stackoverflow.com/a/62632870/16863617). Regardless his solution didn’t work for me, it helped me to came up with the idea to add _init.py_ into the —> Settings | Editor | File Types | Python | Registered patterns

ScreenShot

And the unresolved reference error is now solved.

answered Sep 9, 2021 at 23:55

just note if u have a problem with python interpreter not installing
packages, just change the permission for folder PycharmProjects
C:Users’username’PycharmProjects
to every one

answered Sep 8, 2022 at 10:44

answered Oct 10, 2022 at 12:40

answered Dec 6, 2022 at 14:25

In newer versions of pycharm u can do simply by right clicking on the directory or python package from which you want to import a file, then click on ‘Mark Directory As’ -> ‘Sources Root’