However, I was able to install this messenger on another machine successfully, so I'm wondering why it always fails for this MacBook.

So it's quite obvious that the package signature failed. Mar 13 12:16:36 Daniels-MacBook-Air.local Adobe AIR Application Installer: Got an unexpected fatal error while unpackaging: Mar 13 12:16:36 Daniels-MacBook-Air.local Adobe AIR Application Installer: Package signature validation failed Mar 13 12:16:35 Daniels-MacBook-Air.local Adobe AIR Application Installer: Unpackaging file:///Users/daniel/Downloads/icq4mac.air to /var/folders/ck/5qfd1kc92ks3zk03zcgp3q9w0000gn/T/FlashTmp.mwWFwx ICQ is a cloud-based application and can delete messages at any time. All your conversations are confidential, unavailable to the reach of third parties. Mar 13 12:16:35 Daniels-MacBook-Air.local Adobe AIR Application Installer: Installed runtime (3.) located at /Library/Frameworks/Adobe AIR.framework What is ICQ used for You can download ICQ to chat between two or more users privately, make encrypted video and voice calls All video and audio calls are automatically and VoIP technology. Mar 13 12:16:35 Daniels-MacBook-Air.local Adobe AIR Application Installer: Commandline is: /Users/daniel/Downloads/icq4mac.air Mar 13 12:16:35 Daniels-MacBook-Air.local Adobe AIR Application Installer: Application Installer begin with version 3. The system.log shows the following error:

air file failed and asked me to contact the software creator for a new installation file. Today I attempted to install the official ICQ messenger for Mac (which I downloaded here: ) but the installation of the.

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