When I open Juno, I immediately get a warning message saying “PowerShell version < 3 encountered. Running without wrapper (interrupts won’t work). Why?
You’re seeing this warning because you’re using an older version of PowerShell, in order to resolve this issue, you can either upgrade PowerShell to the latest stable version or disable “PowerShell wrappers” in Juno to avoid seeing this warning, only Interrupts feature will be affected if you disable “PowerShell wrappers”, other IDE functionalities shouldn’t be affected by this.
Following screenshots will guide you on how to disable “PowerShell wrappers”
Step 1: Open your Atom IDE and click on Packages -> Julia -> Settings
Step 2: Scroll down (Or up) to find a checkbox named “Enable PowerShell Wrappers”, disable this checkbox
During JuliaPro installation, I agreed to the software license terms, how can I review this license after the installation ?
You can find the license agreement file in your JuliaPro installation directory.
Example: If you had installed JuliaPro in C:\JuliaPro-0.6.0.1 , then the license.rtf file would be located in following path:
Is the free version of JuliaPro allowed for enterprise / commercial use?
Yes, you can use JuliaPro to develop enterprise or commercial applications.
I’m trying to install JuliaPro, the installation process hangs up and never completes?
This issue could have occurred for multiple reasons
Conflict with your security system: we launch a Julia process and run a postinstall script that’s written in Julia, the security system/settings on your computer might be blocking the installer from creating additional processes which could have lead to this issue. In order to resolve this, we suggest you to add JuliaPro into your security system’s whitelist.
Lack of permission over the installation directory: This issue might occur, if you’re trying to install JuliaPro onto a location which requires admin access (Example:- C:\Program Files, C:\, etc) but you initiated the installation as a standard user, you can resolve this issue by installing JuliaPro in Admin mode or by contacting your administrator for appropriate permissions because your system administrator might have imposed a Group Policy setting which do not allow end-users to install softwares onto certain locations.
Can I install free version of JuliaPro onto a shared location where all my users can access JuliaPro from a single installation?
Yes, you can.
I downloaded JuliaPro for Windows, my antivirus heuristic functionality is warning me about potential Virus when I try to install JuliaPro.
Please check the digital signature of the binary that you’re trying to install (You can right click on the binary and go to properties to check the digital signature), if the digital signature is valid and it was signed by “Julia Computing, Inc.” then you can add the installer binary to your Anti-virus white list. We do perform Anti-Virus scans on all our JuliaPro binaries before releasing them, so you can be assured that the installers available on our website are Virus free
I am unable to install JuliaPro, I am encountering following error message “JuliaPro is already installed, please uninstall the existing version before continuing” when I try to install JuliaPro.
You’re encountering this issue because you already have JuliaPro installed, you cannot have 2 simultaneous installations of JuliaPro if they are of same version.
Example:- You can have JuliaPro v0.6.0.1 and JuliaPro v0.6.1.1 installed simultaneously, but you cannot reinstall JuliaPro v0.6.1.1 if this version is already installed.
In order to resolve this issue, uninstall JuliaPro using Add/Remove programs and try reinstalling it, if you’re unable to find JuliaPro in Add/Remove programs or if your JuliaPro installation folder is corrupted, you can manually remove the JuliaPro registry keys to resolve this issue.
Please follow these steps to remove JuliaPro registry keys
It’s ok if you’re unable to find either one the aforementioned registry entries (HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE) , delete the one that exists. After deleting the registry entries, you can try reinstalling JuliaPro, it should go through.
Where can I download JuliaPro for my 32 bit Windows Operating System?
We are not building 32 bit JuliaPro at the moment, the only version that’s available on Windows is 64 bit.
Can I install multiple versions of JuliaPro on my Windows Operating System?
Yes, you can have multiple versions of JuliaPro installed on your Windows OS.
I have stand alone version of Julia installed on my computer, will installing JuliaPro interfere with my existing installation?
No, installing JuliaPro should not interfere with your existing Julia installation as JuliaPro maintains it’s own version of Julia & JuliaPro packages and these packages are stored in your JuliaPro installation directory.
Why am I encountering following error while performing a Pkg operation (Pkg.add, Pkg.update, etc) in JuliaPro?
ERROR: GitError(Code:ERROR, Class:Net, SSL error: error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version)
ERROR: GitError(Code:ECERTIFICATE, Class:OS, user cancelled certificate check: )
You’re encountering this issue because GitHub stopped supporting TLS 1.0 in February , to fix this issue on Windows, you have to install all the recommended OS updates and then apply easy_fix executable from following URL:
How do I connect JuliaPro to VS Code Julia extension?
You can follow these steps to connect JuliaPro to Visual Studio Code Julia extension:
File -> Preferences -> Settings
execute following command in VS Code
Preferences: Open User Settings
to open the settings.json file
"julia.executablePath":"C:\\JuliaPro-0.6 2 2\\Julia-0.6.2\\bin\\julia.exe"
How do I uninstall JuliaPro on Windows?
The recommended way is to uninstall using “Add or Remove programs”. Open “Add or Remove programs” and search for JuliaPro in the program list, all installed versions of JuliaPro should have JuliaPro version number next to them, if you have multiple versions of JuliaPro installed; select the appropriate version and click on uninstall.
How do I validate authenticity of JuliaPro Windows binaries?
All the Windows binaries from Julia Computing are code signed using a valid digital signature, you can verify the code signature by following these steps
If any of the above options are not present/available, then you can assume the binary is not from “Julia Computing, Inc.”
I am encountering following error while starting Julia in the JuliaPro IDE
Julia has exited. Press Enter to start a new session.
& : File C:\Users\Username\AppData\Local\JuliaPro\.atom\packages\julia-client\script\spawnInterruptible.ps1 cannot be loaded. The file
C:\Users\Username\AppData\Local\JuliaPro\.atom\packages\julia-client\script\spawnInterruptible.ps1 is not digitally signed. You cannot run this script on the current system.
For more information about running scripts and setting execution policy, see about_Execution_Policies at http://go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:3
+ & "C:\Users\Username\AppData\Local\JuliaPro\.atom\packages\ju ...
+ CategoryInfo : SecurityError: (:) , PSSecurityException
+ FullyQualifiedErrorId : UnauthorizedAccess
How do I resolve this issue?
This issue is occurring because your ExecutionPolicy is set to AllSigned, this setting doesn’t allow you to run non-signed scripts on your computer. You can fix this issue by disabling “Powershell Wrappers”. You can do this by following these steps
I am unable to start Julia in JuliaPro IDE, I am encountering following error while trying to start Julia in JuliaPro Windows IDE, how do I fix this issue?
Press Enter to start Julia.
Julia has exited. Press Enter to start a new session.
The issue might be one of the following:
I’m unable to run JuliaPro with a standard user account, it runs perfectly from an admin account.
Most likely reason for this issue is lack of appropriate permission on the installation directory, you can resolve this issue by changing the permission using following command
sudo chown -R :staff /Applications/JuliaPro-.app/
sudo chown -R John:staff /Applications/JuliaPro-0.6.0.1.app/
Where “John” is your username followed by JuliaPro install location.
Yes, you can
What is the minimum version of Python required ?
The minimum version required is 2.7.12.
What is the minimum version of pip required ?
The minimum version required is 9.0.1. This is installed during installation. However, if there are older versions of pip already available then some of the pip packages may not install and the installation process may fail. If the older versions of pip are either removed or disabled then the installation will go through.
I’m encountering following error while installing JuliaPro “xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools)” / I’m encountering an error stating installation failed.
You encounter xcrun errors if you haven’t installed Xcode command line tools. Xcode command line is a prerequisite to JuliaPro on Mac, installation failures occur if this prerequisite is not satisfied.
To install the Xcode command line tools, first open a Terminal window.
To launch a Terminal window from within OSX, first click on the Launchpad icon in the Dock on your desktop, then click the “Other” icon, and select the “Terminal” application.
At the Terminal prompt, execute the following command:
$ xcode-select –install
If the Xcode command line tools are not already installed, then you will be prompted as to whether you would like to install them.
Click the “Install” button to install the Xcode command line tools. Also ensure that you accept the license once installed, you can execute following command to accept Xcode license terms
sudo xcodebuild -license
Installation failures may also occur if you’re using an older version of PIP, in this case, you can either temporarily move your older version of PIP onto a different location until JuliaPro installation completes or you can upgrade PIP to the latest stable version.
I downloaded JuliaPro on my Mac using Chrome/Safari, I got a file with extension .mdlp , how can I install JuliaPro using the .mdlp file?
JuliaPro Mac binaries are shipped as a .pkg file , probably the file is being renamed by your browser or your OS after the download. Please rename the file extension from .mdlp to .pkg . Once the renaming is done, check the authenticity of the pkg file (Steps to do this can be found in this FAQ), once you validate authenticity of pkg file, you can follow the “Quick Start Guide” to install JuliaPro on Mac.
How do I uninstall JuliaPro on Mac?
Goto /Applications folder and locate JuliaPro in the program list, right click on JuliaPro-<JuliaPro_Version_number> (Example:- If you’d installed JuliaPro v0.6.2.2 then JuliaPro-0.6.2.2 would be listed in your program list) and select “Move to Thrash”
How do I validate authenticity of JuliaPro Mac binaries?
Follow these steps to verify the authenticity of your JuliaPro Pkg file
What are the flavours of Linux supported ?
JuliaPro is tested on CentOS7 and Ubuntu 14.04 and above. However, it should work on other flavours of linux too
Can we install JuliaPro offline?
Yes, starting JuliaPro-0.5.2.2 it is possible. The following steps are required:
If JUPYTER and PYTHONPATH are not set packages depending on python (e.g. IJulia) may not work.
How do I validate authenticity of JuliaPro Linux binaries?
You can use gpg –verify command to verify JuliaPro Linux binaries, you have to pass .asc file and the JuliaPro Linux binary in question; as argument to gpg –verify command.
gpg --verify JuliaPro-0.6.2.2_mkl_build-17.sh.asc JuliaPro-0.6.2.2_mkl_build-17.sh
Make sure Julia Computing GPG public keys are pre-installed on your system before executing above command.
Where can I find .asc file to validate JuliaPro Linux binary?
You have to download .asc file separately, link to download the .asc file is provided along with JuliaPro download links.
Where can I find Julia Computing GPG public keys?
You can find Julia Computing GPG public key below
-----BEGIN PGP PUBLIC KEY BLOCK-----
-----END PGP PUBLIC KEY BLOCK-----
You can save above text in a file and use gpg –import <file-name> to import the public key.
gpg –import <file-name>
You can also import our public key from pgp.mit.edu using following command
gpg --keyserver pgp.mit.edu --recv-key 0x8F2CD33DF7816E84
Where 0x8F2CD33DF7816E84 is the hexadecimal KeyID (RSA key ID).
How do I uninstall JuliaPro on Linux?
You can uninstall JuliaPro on Linux by manually removing following folders
Example: - If you’d installed JuliaPro v0.6.2.2 in your home directory, then: ~/JuliaPro-0.6.2.2 would be your installation path
Example: - ~/.juliapro-0.6.2.2
I downloaded JuliaPro for Linux, I got a file with extension .txt , how can I install JuliaPro using the .txt file?
JuliaPro Linux binaries are shipped as a .sh file, probably the file is being renamed by your browser or your OS after the download. Please check the size of .txt file, if it matches the JuliaPro binary size (We list size of all JuliaPro binaries on our download page) then you can go ahead and rename .txt to .sh . Once the renaming is done, you can verify the authenticity of the renamed file using JuliaPro .asc file and then follow the “Quick Start Guide” to install JuliaPro on Linux.
My JuliaPro download links have expired, how do I download JuliaPro?
Download links expire in 24 hours, you can however re-login to your Julia Computing account and request for JuliaPro downloads once again, you will be sent a new set of JuliaPro download links, you can use the new links to download JuliaPro.
Need help with Julia?
We also provide training and consulting services
and build open source or proprietary packages
for our customers on a consulting basis. Mail us:
Julia Computing was founded by all the creators
of the language to provide commercial support
to Julia users. We are based in Boston, New York,
San Francisco, London and Bangalore with
customers across the world.
© 2016 - 2020 Julia Computing, Inc. All Rights Reserved.