title: OCIEnvCreate failed with return code 1 but error message text was not available
body: <p>I'm having some trouble with this exception.
  I already tried this options that i saw <a href="https://stackoverflow.com/questions/12901045/ocienvcreate-failed-with-return-code-1-but-error-message-text-was-not-available">here</a>.</p>
  
  <p><strong>The causes:
  You are using an unsupported version of the Oracle Client (older than 11.2) on Windows 7.
  DLLs from a previous installation of Oracle Client have been left on the system, causing a conflict.
  The solutions:
  Install a supported version of the Oracle Client.
  Perform a search for "OCI.DLL" on the local machine. If you find any instances of this file in any location other than your ORACLE_HOME rename or delete it. If in doubt, uninstall the Oracle Client, then perform the search again. Anything that is leftover is the culprit.</strong></p>
  
  <p>**And I gave permission to all of the Oracle paths. I'm looking for some other solution or help.</p>