Home » Developer & Programmer » Forms » .ORA-12154 ERROR (FORMS 12C)
.ORA-12154 ERROR [message #686126] Sun, 19 June 2022 11:44 Go to next message
gladiator208
Messages: 1
Registered: June 2022
Junior Member
I installed oracle database 12c with no problems.
I installed Forms 12C with no installation problems.
When I try to start FORM BUILDER, the first message that comes up is FRM-18122: Oracle Forms Debugger failed to initialize.

I click on OK and the message goes away.
When I click on Data Blocks, and create a new data block, I try to connect to the database, I get the message ORA-12154: TNS:could not resolve the connect identifier specified.

I am enclosing a file with the locations on where everything was installed.
Also, the TNSNAMES.ORA, LISTENER.ORA, SQLNET.ORA file for your review to try to help me.
Re: .ORA-12154 ERROR [message #686127 is a reply to message #686126] Sun, 19 June 2022 12:32 Go to previous message
Michel Cadot
Messages: 68201
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
ORA-12154: TNS:could not resolve the connect identifier specified
 *Cause:  A connection to a database or other service was requested using
 a connect identifier, and the connect identifier specified could not
 be resolved into a connect descriptor using one of the naming methods
 configured. For example, if the type of connect identifier used was a
 net service name then the net service name could not be found in a
 naming method repository, or the repository could not be
 located or reached.
 *Action:
   - If you are using local naming (TNSNAMES.ORA file):
      - Make sure that "TNSNAMES" is listed as one of the values of the
        NAMES.DIRECTORY_PATH parameter in the Oracle Net profile
        (SQLNET.ORA)
      - Verify that a TNSNAMES.ORA file exists and is in the proper
        directory and is accessible.
      - Check that the net service name used as the connect identifier
        exists in the TNSNAMES.ORA file.
      - Make sure there are no syntax errors anywhere in the TNSNAMES.ORA
        file.  Look for unmatched parentheses or stray characters. Errors
        in a TNSNAMES.ORA file may make it unusable.
   - If you are using directory naming:
      - Verify that "LDAP" is listed as one of the values of the
        NAMES.DIRETORY_PATH parameter in the Oracle Net profile
        (SQLNET.ORA).
      - Verify that the LDAP directory server is up and that it is
        accessible.
      - Verify that the net service name or database name used as the
        connect identifier is configured in the directory.
      - Verify that the default context being used is correct by
        specifying a fully qualified net service name or a full LDAP DN
        as the connect identifier
   - If you are using easy connect naming:
      - Verify that "EZCONNECT" is listed as one of the values of the
        NAMES.DIRETORY_PATH parameter in the Oracle Net profile
        (SQLNET.ORA).
      - Make sure the host, port and service name specified
        are correct.
      - Try enclosing the connect identifier in quote marks.

   See the Oracle Net Services Administrators Guide or the Oracle
   operating system specific guide for more information on naming.
Quote:
tnsnames.ora Network Configuration File: J:\ORACEL21C_DATABASE\homes\OraDB21Home3\NETWORK\ADMIN\tnsnames.ora
Quote:
sqlnet.ora Network Configuration File: J:\ORACEL21C_DATABASE\homes\OraDB21Home3\NETWORK\ADMIN\sqlnet.ora
Quote:
TNS_ADMIN
C:\ORACEL21C_DATABASE\homes\OraDB21Home3\network\admin
sqlnet.ora and tnsnames.ora should be located in the directory given by TNS_ADMIN variable (or the opposite TNS_ADMIN should be set to the files directory).

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