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I am getting below exception while browsing CME.

Unable to get object: LicenseInfo Invalid license Error getting library signature. I have verified that license file is correct. I have also replaced the license file with original one.

It is installed only 2 days before. Detailed exception occurs after passing credential for user authentication is:

System.ServiceModel.FaultException`1[Tridion.ContentManager.CoreService.Client.CoreServiceFault]: Unable to get object: LicenseInfo Invalid license Error getting library signature. (Fault Detail is equal to Tridion.ContentManager.CoreService.Client.CoreServiceFault).

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    seems to be duplicate of tridion.stackexchange.com/questions/3537/… – Raj Kumar Aug 29 '14 at 9:46
  • Hi Raj Kumar, I have not changed anything before starting error. To resolve the issue I have replaced the same file with original copy(Just to check if license file got corrupted). I had already checked the link which you have provided. But there was no luck. Thanks. – Mukesh Kumar Aug 29 '14 at 10:57
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The error is on validating a license library, it’s unlikely to be an issue with the license itself.

  • Validate the “..\Tridion\bin” folder is in the system Path variable.
  • If not, add it (full path, not “..”).
  • Ensure the license you replaced with is valid for the server.
  • Search and remove the files called: ".ezl20ck" and ".ezlm20jk".
  • Reboot the server.
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If this error comes, one more reason could be a Wrong version of JRE/JDK is installed on the server or the JAVA_HOME variable is pointing to the wrong location of JRE/JDK

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