The components panel is empty

[khibinite]

Describe the bug Just installed the LangFlow onto my Windows 10 PC. Have got the empty components left sidebar. Emty work area even if I choose some preinstalled flows

Browser and Version

• Browser Google Chrome
• Version 120.0.6099.129

To Reproduce Steps to reproduce the behavior: I am not sure that it's possible to reproduce, looks like my local problem.

1. Go to the cmd
2. Typed "langflow run"
3. Got the instruction to open LF by the address http://127.0.0.1:7860 and opened it
4. The main page was loaded
5. Clicked New project
6. Have got the empty components sidebar and the workplace

Screenshots

[dosubot[bot]]

🤖

Hey @khibinite! 👋 I'm Dosu, a friendly bot here to lend a hand with your bugs, queries, and contributions while the human maintainers are away. Don't worry, we'll navigate through this together! 😊

Based on the information you've provided, it seems like there could be a couple of potential reasons for the issue you're experiencing with the LangFlow application.

1. API Key Error: LangFlow requires a valid API key to fetch the components and flows. If you don't have an API key or if your API key is not valid, the components panel will be empty and the workspace will not show any preinstalled flows. You can check this in the application settings.

2. Error in fetching components: If there's an error while fetching the components from the server, the components panel will be empty. This could be due to network issues or server-side problems.

Here is the relevant code that handles these scenarios:

useEffect(() => {
    if (!loadingApiKey) {
      if (!hasApiKey) {
        setErrorData({
          title: "API Key Error",
          list: [
            "You don't have an API Key. Please add one to use the Langflow Store.",
          ],
        });
        setLoading(false);
      } else if (!validApiKey) {
        setErrorData({
          title: "API Key Error",
          list: [
            "Your API Key is not valid. Please add a valid API Key to use the Langflow Store.",
          ],
        });
      }
    }
  }, [loadingApiKey, validApiKey, hasApiKey]);

.catch((err) => {
        if (err.response.status === 403 || err.response.status === 401) {
          setValidApiKey(false);
        } else {
          setSearchData([]);
          setTotalRowsCount(0);
          setLoading(false);
          setErrorData({
            title: "Error getting components.",
            list: [err["response"]["data"]["detail"]],
          });
        }
      });

You can find this code in the StorePage/index.tsx file.

Please ensure you have a valid API key and there are no network issues that could prevent the application from fetching the components and flows. If the issue persists, it could be due to a bug in the application or a compatibility issue with your browser version.

If you continue to experience this issue, could you please provide more information about your network environment and any error messages you might be seeing in the browser console? This will help us better understand the problem and find a solution.

Sources

• src/frontend/src/pages/StorePage/index.tsx

---

This response is meant to be useful and save you time. It is not meant to be a precise solution, but rather a starting point for your own research.

Help me be more useful! Please leave a 👍 if this is helpful and 👎 if it is irrelevant.

If you want to continue the conversation, start your reply with @dosu-bot.

[khibinite]

@dosu-bot

Thank you, this gave me a direction. But I have noticed that there is no API Key and profile icons in my LF UI

Looks like a problem. Is it possible to generate API key manually via CLI?

[dosubot[bot]]

🤖

Yes, you can generate an API key manually via CLI to resolve the issue of an empty components panel and missing preinstalled flows in LangFlow. The LangFlow API provides a function to create an API key. Here is the function:

export async function createApiKey(name: string) {
  try {
    const res = await api.post(`${BASE_URL_API}api_key/`, { name });
    if (res.status === 200) {
      return res.data;
    }
  } catch (error) {
    console.error("Error:", error);
    throw error;
  }
}

You can use this function to create an API key by providing a name as a parameter. The function will send a POST request to the ${BASE_URL_API}api_key/ endpoint with the name of the API key in the request body. If the request is successful, it will return the data from the response.

Please note that you need to replace ${BASE_URL_API} with the actual base URL of the API. Also, you need to handle the promise returned by the function appropriately in your code. You can find this function in the src/frontend/src/controllers/API/index.ts file.

However, the createApiKey function is an API call in the LangFlow codebase and it's not designed to be run directly via the Command Line Interface (CLI). It's a function that is meant to be called within the context of the LangFlow application.

If you want to simulate this API call via CLI, you can use a tool like curl. The exact command would depend on your API's authentication and other requirements, but it might look something like this:

curl -X POST -H "Content-Type: application/json" -d '{"name":"your_api_key_name"}' http://your-api-url/api_key/

Please replace "your_api_key_name" with the actual name you want to give to the API key and http://your-api-url/ with the actual URL of your API.

Remember, this is just a simulation of the API call. The actual usage of the createApiKey function should be within the LangFlow application.

Sources

• src/frontend/src/controllers/API/index.ts

---

This response is meant to be useful and save you time. It is not meant to be a precise solution, but rather a starting point for your own research.

Help me be more useful! Please leave a 👍 if this is helpful and 👎 if it is irrelevant.

If you want to continue the conversation, start your reply with @dosu-bot.

[khibinite]

This way doesn't allow to create a key using some special command - not run some code (I suppose it's Node.js?).

Nevertheless, there is not only API key issue but the profile section also.

[khibinite]

@dosu-bot is there any Python version requirement? I use 3.9. Should I update it to 3.12 to make the LF working properly?

[dosubot[bot]]

🤖

Based on the information you've provided, it seems like there are a few different issues you're experiencing with LangFlow. Let's address them one by one.

Firstly, regarding the compatibility of LangFlow with Google Chrome version 120.0.6099.129, I wasn't able to find any specific information within the repository that indicates known compatibility issues. However, it's always a good idea to ensure that your browser is up-to-date and that there are no extensions or settings that could be interfering with LangFlow's functionality.

As for the Python version requirement, according to the pyproject.toml file in the repository, LangFlow requires Python version 3.9 or higher but less than 3.11. Here is the relevant line from the pyproject.toml file:

[tool.poetry.dependencies]
python = ">=3.9,<3.11"

This means that your current Python version (3.9) should be compatible with LangFlow. Upgrading to Python 3.12 would not be advisable as it exceeds the maximum version specified in the pyproject.toml file.

Regarding the missing API Key and profile icons in your LangFlow UI, this could be due to a variety of reasons. It could be a bug, a configuration issue, or something else entirely. Without more information, it's difficult to provide a definitive answer. If you could provide more details about your setup and the steps you've taken, it would be easier to diagnose the problem.

I hope this helps! If you have any more questions or need further clarification, don't hesitate to ask.

Sources

• pyproject.toml

---

This response is meant to be useful and save you time. It is not meant to be a precise solution, but rather a starting point for your own research.

Help me be more useful! Please leave a 👍 if this is helpful and 👎 if it is irrelevant.

If you want to continue the conversation, start your reply with @dosu-bot.

[imfht]

I got the same issue, no components show in left sidebar, can I use langflow without a api key?

[imfht]

I got the same issue, no components show in left sidebar, can I use langflow without a api key?

I downgrade langflow to 0.6.2 and langchain to 0.0.345 then works well.

pip install langchain==0.0.345 langflow==0.6.2

[khibinite]

I got the same issue, no components show in left sidebar, can I use langflow without a api key?

I downgrade langflow to 0.6.2 and langchain to 0.0.345 then works well.

pip install langchain==0.0.345 langflow==0.6.2

Thank you very much. Will try and report

[imfht]

@khibinite I'm not sure if it is affected by network issue. I've installed latest langflow on another windows10 pc. it works well.

My macbook can not access to internet, and i cann't see compents panel until i downgrade langflow to 0.6.2. after the downlgrade, the component panel still missing some components such as LLMChain.

[imfht]

@khibinite I'm not sure if it is affected by network issue. I've installed latest langflow on another windows10 pc. it works well.

My macbook can not access to internet, and i cann't see compents panel until i downgrade langflow to 0.6.2. after the downlgrade, the component panel still missing some components such as LLMChain.

I believe it's caused by wrong python version. I downgrade python to python 3.10 and it works very well.

[MiyazonoKaori]

same error, python3.10, downgrade langflow and langchain not work

[Rupin817]

same problem here

[zagaria]

Had the same issue for 0.6.3 and 0.6.4

After a brief investigation, I found that the issue is related to ChromaDB component. The LangFlow UI API request for components failed due to an issue stating, 'Chroma requires SQLite > 3.35. If you encounter issues due to having a version of SQLite that is too low, please try the following.'

Updating SQLite in system resolved the issue in my case.

[xmduhan]

@zagaria Exactly as you said, the problem was resolved after I upgraded SQLite. Thank you!

[khibinite]

@zagaria Exactly as you said, the problem was resolved after I upgraded SQLite. Thank you!

@xmduhan how did you do that? I mean the SQLite upgrade

[Rupin817]

@zagaria and @xmduhan do you guys have problems when click into pre-defined flow, it is all empty but with components?

[xmduhan]

@Rupin817 Yes, I tried everything I can do with. Only upgrade sqlite worked!

[xmduhan]

@khibinite download sqlite source from: https://www.sqlite.org/download.html compile it and set PATH for new sqlite.

[anandpratapsingh25]

Yesterday i tried installing langflow with latest version i am also getting the same, I tried with lower version and Sqlite upgrade but didnt workout for me. An alternative i tried is "Flowise" but i think available agents have limited capability. Let me know what worked, P.S: I am doing it in a virtual environment created in Pycharm IDE After the update:

import sqlite3 sqlite3.sqlite_version 3.44.2 sqlite3.version '2.6.0' Thanks in Advance

[Rupin817]

@Rupin817 Yes, I tried everything I can do with. Only upgrade sqlite worked!

@xmduhan just to double confirm the components are back for you, but you also cannot see those pre-defined flow example when clicked in? So it is expected?

[khibinite]

@khibinite download sqlite source from: https://www.sqlite.org/download.html compile it and set PATH for new sqlite.

@xmduhan thank you very much, will try

[LauC07]

@khibinite Did you find a solution? I tried everything mentioned in this thread but nothing worked for me...I still can't see any component or flow.

[khibinite]

@khibinite Did you find a solution? I tried everything mentioned in this thread but nothing worked for me...I still can't see any component or flow.

Hi, still no because the last one is not so trivial for me. If I were find some cloud LF service this would be a best solution.

[humble92]

System's Sqlite3 were upgraded to 3.44.2, but it still doesn't work for me. Langflow version is 0.6.4, the latest.

[mariuszkumor]

On my macOS Monterey 12.7.1, Chrome Version 119.0.6045.199 (Official Build) (x86_64), python 3.10.13, langflow 0.6.4 I'm getting no toolbar. The view is like in the attached screenshot. Using Safari the same problem. Do you have any ideas, what can be wrong? Maybe it is related/the same issue as described above?

[jiarko]

@humble92 @khibinite @LauC07 I've solved the issue, take a look at my post https://github.com/logspace-ai/langflow/issues/1350#issuecomment-1896075120

hope this helps ciao

[LauC07]

@humble92 @khibinite @LauC07 I've solved the issue, take a look at my post #1350 (comment)

hope this helps ciao

Thank you very much! Your solution worked for me. I just have to add that in my case I also had to update the langchain-experimental package to make it work properly.

[khibinite]

@humble92 @khibinite @LauC07 I've solved the issue, take a look at my post #1350 (comment)

hope this helps ciao

Hi @jiarko thank you very much for sharing. Will try your solution 🤝