Install.ps1 fails to fetch resources due to TLS 1.2 not active by default

[JesseNaranjo]

Actual behavior

Executing the Install.ps1 script fails to fetch resources from GitHub.com, causing install to fail on Windows systems.

Output (including error messages produced):

C:\<...snip...>\Wiki.js install.ps1
 __    __ _ _    _    _     
/ / /\ \ (_) | _(_)  (_)___ 
\ \/  \/ / | |/ / |  | / __|
 \  /\  /| |   <| |_ | \__ \
  \/  \/ |_|_|\_\_(_)/ |___/
                   |__/     
   < INSTALL >

Specify the full path where Wiki.js should be installed (e.g. C:\wiki):
Path: C:\Wiki.js
[1/6] Fetching 7zip helper... OK
[2/6] Fetching latest build... Exception calling "DownloadFile" with "2" argument(s): "The request was aborted: Could not create SSL/TLS secure channel."
At C:\<...snip...>\Wiki.js install.ps1:61 char:1
+ $downloader.DownloadFile("https://github.com/Requarks/wiki/releases/d ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException
 
OK
[3/6] Fetching dependencies... Exception calling "DownloadFile" with "2" argument(s): "The request was aborted: Could not create SSL/TLS secure channel."
At C:\<...snip...>\Wiki.js install.ps1:65 char:1
+ $downloader.DownloadFile("https://github.com/Requarks/wiki/releases/d ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException
 
OK
[4/6] Extracting app files... Error: 7-Zip encountered a fatal error while extracting the files
At C:\<...snip...>\Wiki.js install.ps1:45 char:9
+     2 { throw "Error: 7-Zip encountered a fatal error while extractin ...
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (Error: 7-Zip en...cting the files:String) [], RuntimeException
    + FullyQualifiedErrorId : Error: 7-Zip encountered a fatal error while extracting the files

Expected behavior

All resources download successfully and Wiki.js is fully installed.

Expected output (received after adding line in "Solution" section below):

C:\<...snip...>\Wiki.js install.ps1
 __    __ _ _    _    _     
/ / /\ \ (_) | _(_)  (_)___ 
\ \/  \/ / | |/ / |  | / __|
 \  /\  /| |   <| |_ | \__ \
  \/  \/ |_|_|\_\_(_)/ |___/
                   |__/     
   < INSTALL >

Specify the full path where Wiki.js should be installed (e.g. C:\wiki):
Path: C:\Wiki.js
[1/6] Fetching 7zip helper... OK
[2/6] Fetching latest build... OK
[3/6] Fetching dependencies... OK
[4/6] Extracting app files... OK
[5/6] Extracting dependencies... OK
[6/6] Creating config file... OK
[6/6] Removing installation files... 
Installation Complete

Thank you for installing Wiki.js!
Please consider donating to our open collective to help maintain this project:
https://opencollective.com/wikijs/donate

- Launch configuration wizard: node wiki configure
- Start Wiki.js server: node wiki start

Steps to reproduce the behavior

Running the Install.ps1 script on Windows Server 2016 without any configuration changes. This probably has more to do with PowerShell than with Windows directly.

Solution

Append the following line at the top of the script to instruct PowerShell to prioritize the use of TLS 1.2.

[Net.ServicePointManager]::SecurityProtocol = "tls12, tls11, tls"

This is a working copy of the Install.ps1 script with the modification - it's the very first line.

Wiki.js install.ps1.txt

[NGPixel]

Install script was updated. Thanks!

[JesseNaranjo]

That was quick! Thanks.