Today while restarting my WLS_FORMS server, I came across a error “The file store “WLS_DIAGNOSTICS” could not be opened because it contained a file with the invalid version 1. A file of version 2 was expected.”
Part of Error Log was as follows:
#### <> <> <> <1280499317750>
There are 1 nested errors:
weblogic.store.PersistentStoreException: [Store:280073]The file store “WLS_DIAGNOSTICS” could not be opened because it contained a file with the invalid version 1. A file of version 2 was expected.
#### <> <> <> <1280499317953>
After lot of searching and headbanging I came across following thread http://forums.oracle.com/forums/thread.jspa?threadID=684783
I followed the advice of the user “user2696444” and did as follows:
Step 1. Shutdown Servers (including Weblogic Admin Server plus opmn components)
Step 2. Under DOMAIN HOME (in my case it was D:\oracle\Middleware\user_projects\domains\ClassicDomain) I search for *.DAT and deleted those files with capital letters .DAT and not small letters .dat
Step 3. Under DOMAIN HOME then I search for *.lok and deleted all the files that I found.
Step 4. Then Started Admin Server plus all the other servers including opmn components.
that it, after that I could see my WLS_FORMS in green and up