I can't get this extension to reproduce your problem. Please check "Enable detailed logging" option in preferences dialog box, restart AEM, then try to install the extension. After reproducing the problem, quit AEM, then send the log file in "/Users/<YourUserName>/Library/Application Support/Adobe/Extension Manager CC/Log" folder to email@example.com.
I also am using Adobe Extension Manager CC 18.104.22.168 with Mac OS X 10.8.5. I am getting the same error message above, that my extension does not contain a valid signature. However, I cannot find the log file after following the instructions above (enabling detailed logging, restarting AEM, reproducing the problem).
Am I missing something?
The “/Users/<YourUserName>/Library” folder is hidden in Finder by default. You have to hold down “option” key and click “Go”->“Library” menu item to go to this folder then find the log file.
I´m also having problems to install the same extension, you could do it?? if yes could you tell me how please!
I'm getting the same error with Adobe Extension Manager CC 22.214.171.124 when trying to install GuideGuide (guideguide.me) for Photoshop CC.
This is what was in the log file:
[Error] Fri Apr 25 14:12:54.588 2014 (/Volumes/Develop/jenkins_slave_all/workspace/ExMan_7.1.1_RIBS_Mac/ExManCoreLibrary/Mac/. ./Source/Util/SignatureValidator.cpp, 90) -CSignatureValidator::verifySignature: ZXPSign_verify() failed for "/var/folders/91/744_0jls50jg73cmhycyx5300000gn/T/tmp985baaaaa", sign_status is 52!
[Error] Fri Apr 25 14:12:54.588 2014 (/Volumes/Develop/jenkins_slave_all/workspace/ExMan_7.1.1_RIBS_Mac/ExManCoreLibrary/Mac/. ./Source/ExtensionBase.cpp, 164) -CExtensionManager::validateExtension: CSignatureValidator::verifySignature() failed for "/var/folders/91/744_0jls50jg73cmhycyx5300000gn/T/tmp985baaaaa", status is -402!
[Error] Fri Apr 25 14:12:54.588 2014 (/Volumes/Develop/jenkins_slave_all/workspace/ExMan_7.1.1_RIBS_Mac/ExManCoreLibrary/Mac/. ./Source/ExtensionBase.cpp, 600) -CExtensionBase::install: validateExtension() failed for zxp /Users/******/Desktop/guideguide-2.1.4.zxp, status = -402!
This error means that verification of signature succeeds but verification of certificate revocation fails as CRL could not be downloaded.
Please click "Tools"->"Preferences..." menu item, uncheck "Allow Extension Manager to access Internet" option, then install the extension again. In this way Extension Manager will not try to download CRL.
"Allow Extension Manager to access Internet" was already checked, but I just tried it again on a different network and it suddenly worked, so maybe the network I was on was blocking the port it needed. Who knows? Anyway, thanks for the reply :-)