fail record:

[patricklau]

in catalog / manage products / edit product. i get fail: There has been an error processing your request Exception printing is disabled by default for security reasons. Error log record number: 304413636909

LEARN ME STEP BY STEP WHERE TO OPEN IT AGAIN?

[Gabriel Guarino]

Hi @patricklau,

It seems that you don't have display_errors and developer mode enabled in Magento and that is why you see that message (with the error file ID) instead of the error in the browser.

In order to turn on error reporting you should: 

a) Open index.php and un-comment the following line

Display Errors

#ini_set('display_errors', 1);

b) Open .htaccess and add the following line at the end:

Developer Mode

SetEnv MAGE_IS_DEVELOPER_MODE "true"

Best regards.
Gabriel

[patricklau]

Dear Gabriel,

Now i have ftp all.


but i will try to input as you learn me.

Pls. i have no experiance.

can you step by step show me by pic. of index and htaccess.

I have install a extension full page cache for magento. the guide here show
top opload an index.php

Maybe this cause the problem.?????????????


now in clear index, it show fail:
"tax/class_source_product" not found for attribute "tax_class_id"



thx dear

patrick