When i try to install my certificate in keychain, the error says: Unable to import - Error Code 25294
Solution 1:
Try adding the certificate to the "login" keychain.
Solution 2:
I worked around this error by adding the certificate to the login keychain by drag and drop.
Solution 3:
The error code means "No such keychain":
errSecNoSuchKeychain -25294 The specified keychain could not be found.
I'm not really sure on how to proceed, but maybe this information points you in the right direction.