I have successfully installed SS 3.1 on my host server (CentOS/Apache) and created some test content. Now it is time to set up a test environment on my local box.

I created a XAMPP installation on my Windows machine for testing and the install works well.
I exported my MySQL database to a .sql file and imported it to the local database (also MySQL).
I copied all the SS 3.1 files and the add-ons to my local machine. It works! All the content is there and displays correctly.

However, when I attempt to make changes on the test box that require a dev/build I get this error:

Fatal error: Cannot redeclare class Zend_Loader in C:\xampp\htdocs\ss\external-content\thirdparty\Zend\Loader.php on line 31

So I tried to re-install SS and I get an identical error:

Setting up 'mysite/_config.php'...
Setting up C:\xampp\htdocs\ss\mysite/_config.php
Setting up '.htaccess' file...
Setting up C:\xampp\htdocs\ss\.htaccess
Building database schema...

Fatal error: Cannot redeclare class Zend_Loader in C:\xampp\htdocs\ss\external-content\thirdparty\Zend\Loader.php on line 31

php.ini is set up correctly and there are no other problems that I am aware of.

Any ideas? ? ?

- ad5xj

Which modules do you have installed? It appears as though two modules have each provided Zend_Loader.

Well, I have the exact same modules from the online web site. This is SS 3.1.6 core.

There are add-on modules but they are the same as the online site.

Since there is no direct way (without composer) to compare installed modules and core modules to anything - including the repository - it is a difficult task to know what is different since this is an exact duplicate of the online site. Besides the site is functional until I do the dev/build. A more descriptive error message (backtrace dump or offending module/operation, etc.) from dev/build would be helpful as well.