Installing Add-ons Works Again

Dear Orange users,

Some of you might have an issue installing add-ons with the following issue popping up:

xmlrpc.client.Fault: <Fault -32601: 'server error; requested method not found'>

This is the result of the migration to a new infrastructure at PyPi, which provides the installation of add-ons. Our team has rallied to adjust the add-on installer so it works with the new and improved service.

In order to make the add-on installer work (again), please download the latest version of Orange (3.13.0).

We apologize for any inconvenience and wish you a fruitful data analysis in the future.

Yours truly,

Orange team

17 thoughts on “Installing Add-ons Works Again

  1. I just downloaded the orange package through a jupyter download. I am trying to use the SQL server widget to actively connect to my data. However, after downloading it into my cmd, it says that pip is not recognized as an internal or external command, operable program, or batch file. Is there a simple solution to connecting this add in to Orange?

      1. Thank you for the link. I am using a Windows computer. I downloaded Jupyter notebook, which in turn installed anaconda. Within the anaconda navigator, is where I found Orange. However I do not know much about it. I was able to connect excel files and such but when I tried to download the pymssql add on, for the SQL widget to work, it gave me the error that I listed above. I downloaded it using the link and then used command prompt to download it into my C:/ , in order to connect it to my Orange software. This is what my Senior Data Analyst told me to do.

        1. Ok, I see what the the idea. I am not sure Anaconda Navigator works well for Orange, but you can give it a go. I think the easiest way to do it is to download the follow the instructions in the link and drag and drop the downloaded wheel into add-on dialogue and run it. Let me know if it works.

  2. I have tried to install the timeseries add-on in 3.14.0. It shows as being installed in the add-on window but I don’t see it available on the left-hand tool list on the main page. It worked good with 3.13, did something change? Thanks

  3. Thanks a lot for the info. Updated it (from 3.5 to 3.13) and it seems to work perfectly (MacOS 10.9.5 with PyQt5==5.8.2 due to compatibility issues)

  4. Is there a way to install add-ons offline?
    Our institutions firewalls seem to hinder add-on installation on some computers. There is no issue with installing orange offline on those computers.


    1. There are two options. You can set the proxy under Preferences – Network. This usually solves the issue.
      Alternatively, you can download each add-on as zip from its corresponding Github page, then drag and drop the zip to add-on dialogue. However, this would still require access to the internet, as each add-on requires specific packages available online.

      1. Thanks! I will try this. (For some reason the download and installation via miniconda installer works without issue, only add-on installation is problematic)

      2. Hi, Can I do this drag and drop to install Recommendation too? I am having problems to install this add-on in Windows PCs using the Command prompt. No problems for MacBooks using the terminal.

        1. In theory, yes. However, Recommendation is not a supported add-on and we can’t guarantee it will work. I am having problem with mine on MacOS, but if it works for you, then great!

          1. It works, thanks Ajda! I can install it by dragging and dropping and use the Baseline widgets (not the BRISMF or SVD++), but I knew this before. 🙂

    1. If you mean if you can export Python code, the answer is no. If you mean if you can use Orange as a Python library, the answer is yes. You can see documentation on our website.

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