joomla mvc backend actions issues - Joomla! Forum - community, help and support

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when login administration portion of joomla page , go component under components menu access default page. normal fields see make changes. tutorial adds 3 fields jtoolbarhelper::. these fields new,edit,and delete. when click of buttons progress screen such edit,add,or delete brings me error page. complaining component not being found.the reason messed link.

the link site turns into

administrator/index.php?option=com_com_example&view=example&layout=edit
it should be
administrator/index.php?option=com_example&view=example&layout=edit
somewhere com_ being added , have looked everywhere. understand why or should fix issue?






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