I am trying to install the GT speed extension in magento 1.9.3. It is working fine on staging server but on live it is giving :

Fatal error: Class 'GT_Speed_Helper_Data' not found in I have checked the class exists in the Data.php.

Please help me what I can do to solve this.

  • Please Disable compilation and clear cache and test. – Chirag Rajput Apr 18 at 13:27

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