This technote addresses the installation issue of Adobe AIR applications after 30th Oct 2017 that is signed with SHA1 certificate. It is applicable to both Windows and Mac.
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IssueDownload Adobe Flash Player For Mac
When you install your AIR application, the installation fails with the below error. The error dialog is a generic installation failure message that could occur for various reasons. One of them is due to signature validation failure.
Who should use this solution?
If your developed AIR application fails to install after 30th Oct 2017.
Issue confirmation
Follow the steps below to verify if the signature validation failure is the cause of the installation failure:
Solution
You will have to re-sign your Adobe AIR application. Follow the steps below to re-sign your application:
<AIR_SDK_compiler_path>binadt -package -storetype pkcs12 -keystore <app_signing_certficate_path> myApp.air application.xml .
Command line parameters:
Download for adobe flash player for mac high seirra. When prompted, enter the password of your application signing certificate.
Note:
Do not ignore the . (dot) at the end of the packaging command above. It is used to package all the resources present in your existing application. For more details on packaging AIR applications, refer https://help.adobe.com/en_US/air/build/WS901d38e593cd1bac1e63e3d128cdca935b-8000.html. Workaround
AIR applications with the above-mentioned issue can be installed using two methods.
Using keyboard shortcuts:
Install the Adobe AIR Runtime
![]() Steps to follow on Windows:
1. Go to C:Program Files (x86)Common FilesAdobe AIRVersions1.0
2. While holding the “Ctrl” key, select the Adobe AIR Application Installer.exe -> Right click on it -> Run as Administrator. Do not take your finger off the “ctrl” key until you see the window open up.
3. Select and open the AIR application to be installed.
Steps to follow on Mac:
1. Go to /Applications/Utilities
2. While holding the “command” key, double click on the Adobe AIR Application Installer. Do not take your finger off the “command” key until you see the window open up.
3. Select and open the AIR application to be installed.
The Adobe AIR Application should be installed successfully.
Using the new -ignoreExpiredCertificateTimestamp directive while launching AIR Application installer using Command Prompt/Terminal
Install the Adobe AIR Runtime
Steps to follow on Windows:
1. Open a command prompt as Administrator.
2. Run the following command:
“C:Program Files (x86)Common FilesAdobe AIRVersions1.0Adobe AIR Application Installer.exe” – ignoreExpiredCertificateTimestamp
3. Window opens up.
4. Select and open the AIR application to be installed.
Steps to follow on Mac:
1. Open Terminal.
2. Run the following command: Download adobe flash player for windows 7.
Adobe flash install for mac. /Applications/Utilities/Adobe AIR Application Installer.app/Contents/MacOS/Adobe AIR Application Installer/ -ignoreExpiredCertificateTimestamp
3. Window opens up.
4. Select the AIR application to be installed.
Adobe AIR Applications gets installed successfully.
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