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Sean commented on FLEX-35296: ----------------------------- Thanks for the help Josh, here are the steps that helped me solve the issue: 1. download: http://flex.apache.org/download-binaries.html and expand to c:\sdk 2. download ant: https://ant.apache.org/bindownload.cgi and expand to c:\ant 3. For now only seems to work ONLY with Java 1.8.0.45 which you can download from here: http://www.oracle.com/technetwork/java/archive-139210.html ( http://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html#jdk-8u45-oth-JPR ) 4. Next after you download copy the files from C:\Program Files\Java\jdk1.8.0_45\lib to C:\Program Files\Java\jre1.8.0_45\lib 5. Next update the securitycrypto extension for 1.8.45 by download http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html and expand to C:\Program Files\Java\jre1.8.0_45\lib\security 6. Next make sure system path includes c:\ant\bin 7. finally run: ant -f installer.xml -Dair.sdk.version=25.0 -Dflash.sdk.version=25.0 hope it helps someone and hope Apache flex guys will fix the UI installer soon, thanks as always, Sean > Apache Flex SDK Installer SDK 4.16.0 and AIR 25.0 fails download > ---------------------------------------------------------------- > > Key: FLEX-35296 > URL: https://issues.apache.org/jira/browse/FLEX-35296 > Project: Apache Flex > Issue Type: Bug > Environment: Windows 10 > Reporter: Sean > Attachments: err.PNG > > > Apache Flex SDK Installer SDK 4.16.0 and AIR 25.0 fails > Getting an error of Installation: Error #1000 > Tried several PCs and same issue. > See attached image -- This message was sent by Atlassian JIRA (v6.3.15#6346)