installation file corrupted from install4j - installation

install4j's multiplatform installer has been working great for years. Now out of the blue we are getting an error popup dialog that The installation file is corrupted. If it is a download please try again. It has installed about 19MB of 164MB and the last file it didn't write was a small jar that has been in the build for some time now.
We get this error when running the full installer right after it is built as a test. We are also building several 'companion' applications with all the same files just different start up options and its installer run fine.
We are using install4j in batch mode:
install4j version: 5.0.8 (build 5311)
Thanks.

Are you running it on the latest Mac OS? If so then this is because of the latest Gatekeeper "feature" of Apple and you need to sign your code: http://support.apple.com/kb/HT5290

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Arduino IDE (Win10) crashes when I launch the program

My Arduino IDE (ver 1.8.12 on Win10) crashes when I launch it. Running the arduino_debug.exe I get this error message.
C:\Program Files (x86)\Arduino>arduino_debug.exe
Set log4j store directory C:\Users\volke\AppData\Local\Arduino15
Loading configuration...
Initializing packages...
java.lang.NullPointerException
at cc.arduino.contributions.packages.ContributionsIndexer.parseIndex(ContributionsIndexer.java:134)
at processing.app.BaseNoGui.initPackages(BaseNoGui.java:483)
at processing.app.Base.<init>(Base.java:273)
at processing.app.Base.main(Base.java:150)
C:\Program Files (x86)\Arduino>
Any solutions? I've tried to delete the config files package_index.json and package_esp32_index.json without any luck.
I've got the same issue - the nightly build seems to work
https://www.arduino.cc/download.php?f=/arduino-nightly-windows.zip
https://www.arduino.cc/en/Main/Software
I'm on Windows 10 having exactly this issue (same arduino_debug log).
I tried uninstalling Arduino IDE and then reinstalling it from executable installer; it worked fine until I opened the Board manager: the problem recurs.
After installing the beta version (arduino beta1.9-BUILD-119), I'm not having any problem.
Just use the latest Arduino IDE Beta Version. It is working now, ignoring that issue. I'm using the ESP8266 board and it's running okay.
The beta version 1.9 worked for me. https://www.arduino.cc/en/Main/Software
It also happens on Manjaro linux. In my case removing the folder .arduino15 solves the issue, but I have to remove it every time I open arduino IDE
rm -rf ~/.arduino15/
Win10 folder location:
%HOMEPATH%\AppData\Local

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Cannot open script file at
/var/folders/yr/459cs03n63g185cf1bp_3xvc0000gn/T/remoterepo-6sdgWK/qt.596.qtdatavis3d.android_armv7/installscript.qs:
No such file or directory
Why it cannot open this installscript.qs file?
I'm running macos Sierra
So I want to share my solution: just restart the installer.
Another way to fix most Qt installer problems is to open https://download.qt.io/ and download the complete .dmg installer (from this folder https://download.qt.io/official_releases/qt/)
I had this problem I think because I kept the installation idle for long time trying to solve another problem: the installer couldn't find XCode even if I had it already installed, like in this question
Attempt to install Qt on OS X gives 'You need to install XCode 5.0.0', but this version is so old it's not available

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If latest updates in the app store included an XCode update (which is the case here), then make sure you run XCode once before running Eclipse, so that you can accept the terms of use. Apparently, the Eclipse GIT plugin has some dependency on XCode.
I discovered this by looking at the log file in the Eclipse workspace which contained lines like this:
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Here is a screenshot:
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