Try clearing your browser caches. AIR uses libraries from one of the browsers on your computer and sometimes those browser cache a bad copy of the download.
-Alex On 7/5/14 12:07 AM, "Deepak MS" <megharajdee...@gmail.com> wrote: >Hello, >I tried to install 4.12.1 via latest Installer, but installation is >failing. I tried multiple times. >Log: >Version 3.0.0 (windows) >Using Locale:en_IN >Fetched the SDK download mirror URL from the CGI. >AIR version 14.0 >Flash Player version 14.0 >Creating Apache Flex home >Creating temporary directory >Downloading Apache Flex SDK from: >http://www.motorlogy.com/apache/flex/4.12.1/binaries/apache-flex-sdk-4.12. >1-bin.zip >Verifying Apache Flex SDK MD5 Signature >md5 progress 16384 420320 >md5 progress 32768 420320 >md5 progress 49152 420320 >md5 progress 65536 420320 >md5 progress 81920 420320 >md5 progress 98304 420320 >md5 progress 114688 420320 >md5 progress 131072 420320 >md5 progress 147456 420320 >md5 progress 163840 420320 >md5 progress 180224 420320 >md5 progress 196608 420320 >md5 progress 212992 420320 >md5 progress 229376 420320 >md5 progress 245760 420320 >md5 progress 262144 420320 >md5 progress 278528 420320 >md5 progress 294912 420320 >md5 progress 311296 420320 >md5 progress 327680 420320 >md5 progress 344064 420320 >md5 progress 360448 420320 >md5 progress 376832 420320 >md5 progress 393216 420320 >md5 progress 409600 420320 >md5 progress 420320 420320 >The Apache Flex SDK MD5 Signature of the downloaded files does not match >the reference value. The file is invalid, installation is aborted. >Installation aborted