Install problem MiKTeX under GitHub Actions - github-actions

Question

Since around October 16 2022 we have problems with installing MiKTeX under GitHub Actions.
The error we get is:
Run ./miktexsetup_standalone --local-package-repository=C:/miktex-repository \
./miktexsetup_standalone --local-package-repository=C:/miktex-repository \
--package-set=essential \
--shared \
install
shell: C:\Program Files\Git\bin\bash.EXE --noprofile --norc -e -o pipefail {0}
initexmf.exe: The executed process did not succeed.
initexmf.exe: Data: fileName="C:\Program Files\MiKTeX\miktex\bin\x64\initexmf.exe", exitCode="1"
Error: Process completed with exit code 1.
The procedure followed in GitHub Actions consists of a few steps:
Step 1:
- name: Download MikTex (Windows)
run: |
$wc = New-Object System.Net.WebClient;
$maxAttempts=5;
$attemptCount=0;
Do {
$attemptCount++;
Try {
$wc.DownloadFile("https://ctan.math.illinois.edu/systems/win32/miktex/setup/windows-x64/miktexsetup-5.1-x64.zip","miktexsetup-5.1-x64.zip")
} Catch [Exception] {
Write-Host $_.Exception | format-list -force
}
} while (((Test-Path "miktexsetup-5.1-x64.zip") -eq $false) -and ($attemptCount -le $maxAttempts))
shell: pwsh
if: matrix.config.os == 'windows-latest'
Step 2:
- name: Extract MikTex zip (Windows)
shell: bash
run: |
unzip miktexsetup-5.1-x64.zip
if: matrix.config.os == 'windows-latest'
Step 3:
- name: Download MikTex packages (Windows)
shell: bash
run: |
./miktexsetup_standalone --verbose \
--local-package-repository=C:/miktex-repository \
--remote-package-repository="https://ctan.math.illinois.edu/systems/win32/miktex/tm/packages/" \
--package-set=essential \
download
if: matrix.config.os == 'windows-latest'
Step 4 (the failing step):
- name: Install MikTex packages (Windows)
shell: bash
run: |
./miktexsetup_standalone --local-package-repository=C:/miktex-repository \
--package-set=essential \
--shared \
install
if: matrix.config.os == 'windows-latest'
Step 5:
- name: Setting MikTex paths (Windows)
shell: bash
run: |
echo "C:/Program Files/MiKTeX/miktex/bin/x64/" >> $GITHUB_PATH
export PATH="/c/Program Files/MiKTeX/miktex/bin/x64/:$PATH"
echo "Configuring MiKTeX to install missing packages on the fly"
initexmf --admin --verbose --set-config-value='[MPM]AutoInstall=1'
if: matrix.config.os == 'windows-latest'
Any ideas how to solve this problem / what can be the problem?

Answer 1

Based on discussions in https://github.com/MiKTeX/miktex/discussions/1204 and https://github.com/MiKTeX/miktex/issues/1213 the solution is to replace the MiKTeX version's zip file
from:
miktexsetup-5.1-x64.zip
to:
miktexsetup-5.2.0+b8f430f-x64.zip