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I was installing magento 1.9.1 on my server everything went fine but after installation when i click on Go to Backend and give my username and password to login to Admin Panel it gives the following error:

Fatal error: Class 'Mage_Sales_Model_Order' not found in /home2/siatel/public_html/4ebay/app/code/core/Mage/Reports/Model/Resource/Order/Collection.php on line 456

Though my frontend side of website is working perfectly ... Please help. I can see my admin log-in page. Error comes only when I give username and pass and hit continue...

Rajeev K Tomy
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muqaddas shahzad
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2 Answers2

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Without more information, it sounds like you're missing your

app/code/core/Mage/Sales/Model/Order.php

file. It seems like you're missing a lot of different files as well. I'd diff your installation vs. the contents of a standard tar archive.

Alana Storm
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  • Thank you for your assistance... after placing this file, now I'm getting this error: Fatal error: Class 'Mage_Sales_Helper_Data' not found in /home2/siatel/public_html/4ebay/app/Mage.php on line 547 – muqaddas shahzad Jul 15 '14 at 00:52
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    @muqaddasshahzad: Now you need to make sure the file `app/code/core/Mage/Sales/Helper/Data.php` does exist. – Rajeev K Tomy Jul 15 '14 at 00:54
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    @muqaddasshahzad Seems like you're missing a bunch of files. I suspect you uploaded things incorrectly. I'd start there. Also, thanks for the upvote! :) – Alana Storm Jul 15 '14 at 00:58
  • Hello, Thank you so much, I'm into to magento... and you are right I might missed some files as I've uploaded through FTP with very unstable internet connection... does it mean, I still may suffer more errors even I'm into Control Panel? – muqaddas shahzad Jul 15 '14 at 01:10
  • Ah.. now when i click System>Configuration option it gives following error: Fatal error: Class 'Mage_Shipping_Helper_Data' not found in /home2/siatel/public_html/4ebay/app/Mage.php on line 547 could you please tell me the way that how do you know I'm missing files and where I'm missing? if I could know then I can place all without bothering you more.... – muqaddas shahzad Jul 15 '14 at 01:13
  • Might be. Some errors will popup immediately, when we try to access a new page. While some errors trigger only when a missing file is requested and needed to use by magento. It depends – Rajeev K Tomy Jul 15 '14 at 01:15
  • Could you please tell me how can i get to know which file is missing.. please take my current error into account and tell me how do i can know which file is missing and where? – muqaddas shahzad Jul 15 '14 at 01:18
  • As @AlanStorm said, it seems that your system misses a bunch of files. You may need to install magento again or need to check each and every page of admin – Rajeev K Tomy Jul 15 '14 at 01:19
  • AH, it took about 5 hours to copy installation files from my local system to my server through FTP ... Do i must have to do again or is there any other way out? – muqaddas shahzad Jul 15 '14 at 01:23
  • I added an answer. Please check it. – Rajeev K Tomy Jul 15 '14 at 01:27
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Your error shows like this

Fatal error: Class 'Mage_Shipping_Helper_Data' not found in /home2/siatel/public_html/4ebay/app/Mage.php on line 547

see the portion 'Mage_Shipping_Helper_Data' not found. It means Magento is looking for a helper class file and it couldnt find it. Magento will look for this file in app/code/core/Mage/Shipping/Helper/Data.php.

I will give you some hint on how this file path came from. First of all magento core files lies in the location app/code/core/. Then missing class name (in this case Mage_Shipping_Helper_Data) will converted as Mage/Shipping/Helper/Data.php. Then this will append to the core codePool directory path. That is app/code/core/Mage/Shipping/Helper/Data.php

For every file, magento assigns path as like this. Please note that, you need to attach .php part to the last keyword. Also you need to copy the exact same data of that file (take into consider the version). It means it need to have a 'Magento way' class name and so on

Rajeev K Tomy
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  • That is absolutely right, and I know that it has missed lot of files, i can see there isn't some folders even showing... I don't know how do I can thumps up on both of your replies... Anyways very much grateful – muqaddas shahzad Jul 15 '14 at 01:33
  • One thing that you can do is, check each and every core modules of magento with a fresh copy of magento 1.9.1 that are available in github.(https://github.com/speedupmate/Magento-CE-Mirror). But the best way is remove all existing file and then re-do installation. There may be other solutions. Ask @alanstorm. He is a genius. I have studied a lot from him and I am his big fan :) – Rajeev K Tomy Jul 15 '14 at 01:40