1: HTTP 500 - error - {"success":true,"message":""} 1st installation.

[Thomashek]

I am sorry, but i didnt found any solution.

1st installation Prestashop 8.1.7 (newset) to WampServer 3.3.5 (Windows 11 64bit version), i change PHP version and some else steps, but i get this mistake: 1: HTTP 500 - error - {"success":true,"message":""}

Same problem i get by installation on our web server.

Somebody solve it?

[FdezdePravia]

I had the same issue and wasn't able to solve it. Finally I tried  lower versions of PrestaShop until it worked.
Now I have  xampp 8.2.12 and PrestaShop 8.1.2 and it is working fine.
I think it may be some kind of incompatibility between the PrestaShop and Apache server

Edited August 28, 2024 by FdezdePravia (see edit history)

[endriu107]

Quick fix tutorial:

 

[FdezdePravia]

On 9/22/2024 at 3:44 PM, endriu107 said:

Quick fix tutorial:

 

I'm working fine with PrestaShop 8.1.2 now, but I'll try your solution later. Thank you very much for your answer

[musicmaster]

When you look in your error log you will see the following error:

PHP Fatal error:  Uncaught ErrorException: Warning: 
require(C:\\xampp\\htdocs\\var\\cache\\dev\\ContainerJiLuDQW\\getSwiftmailer_EmailSender_ListenerService.php): 
Failed to open stream: No such file or directory in 
C:\\xampp\\htdocs\\var\\cache\\dev\\ContainerJiLuDQW\\appAppKernelDevDebugContainer.php:2243

The solution that Endriu mentions and that for me worked is editing the file /app/AppKernel.php 

Change the function getContainerClearCacheLockPath() from

    protected function getContainerClearCacheLockPath(): string
    {
        $class = $this->getContainerClass();
        $cacheDir = $this->getCacheDir();

        return sprintf('%s/%s.php.cache_clear.lock', $cacheDir, $class);
    }

to

    protected function getContainerClearCacheLockPath(): string
    {
        $class = $this->getContainerClass();
		$cacheDir = sys_get_temp_dir();

        return sprintf('%s/%s.php.cache_clear.lock', $cacheDir, $class);
    }

 

[otherprod]

On 10/14/2024 at 7:04 PM, musicmaster said:

When you look in your error log you will see the following error:

PHP Fatal error:  Uncaught ErrorException: Warning: 
require(C:\\xampp\\htdocs\\var\\cache\\dev\\ContainerJiLuDQW\\getSwiftmailer_EmailSender_ListenerService.php): 
Failed to open stream: No such file or directory in 
C:\\xampp\\htdocs\\var\\cache\\dev\\ContainerJiLuDQW\\appAppKernelDevDebugContainer.php:2243

The solution that Endriu mentions and that for me worked is editing the file /app/AppKernel.php 

Change the function getContainerClearCacheLockPath() from

    protected function getContainerClearCacheLockPath(): string
    {
        $class = $this->getContainerClass();
        $cacheDir = $this->getCacheDir();

        return sprintf('%s/%s.php.cache_clear.lock', $cacheDir, $class);
    }

to

    protected function getContainerClearCacheLockPath(): string
    {
        $class = $this->getContainerClass();
		$cacheDir = sys_get_temp_dir();

        return sprintf('%s/%s.php.cache_clear.lock', $cacheDir, $class);
    }

 

This work perfectly, thank you

[VertNature]

That worked beautifully for me struggling installing PS8.2- but don't ask me why !

Thanks a lot.

[jooky]

Thank you, lifesaver :)

[luisleitaoaudio]

This workaround works because it changes the cache lock file location from PrestaShop's default cache directory (getCacheDir()) to the system's temporary directory (sys_get_temp_dir()), which is always writable by PHP. The original issue occurs when PrestaShop tries to clear the cache, but due to missing files, incorrect permissions, or locked processes, it fails to regenerate the necessary cache files, leading to the "Failed to open stream" error. By redirecting the lock file to a system-managed temporary directory, the issue is bypassed, ensuring that the cache clearing process can proceed without being blocked by permission restrictions or file system conflicts, particularly in Windows environments like XAMPP. However, this is a workaround, and should be used with caution.

[darkin]

On 10/14/2024 at 7:04 PM, musicmaster said:

When you look in your error log you will see the following error:

PHP Fatal error:  Uncaught ErrorException: Warning: 
require(C:\\xampp\\htdocs\\var\\cache\\dev\\ContainerJiLuDQW\\getSwiftmailer_EmailSender_ListenerService.php): 
Failed to open stream: No such file or directory in 
C:\\xampp\\htdocs\\var\\cache\\dev\\ContainerJiLuDQW\\appAppKernelDevDebugContainer.php:2243

The solution that Endriu mentions and that for me worked is editing the file /app/AppKernel.php 

Change the function getContainerClearCacheLockPath() from

    protected function getContainerClearCacheLockPath(): string
    {
        $class = $this->getContainerClass();
        $cacheDir = $this->getCacheDir();

        return sprintf('%s/%s.php.cache_clear.lock', $cacheDir, $class);
    }

to

    protected function getContainerClearCacheLockPath(): string
    {
        $class = $this->getContainerClass();
		$cacheDir = sys_get_temp_dir();

        return sprintf('%s/%s.php.cache_clear.lock', $cacheDir, $class);
    }

 

Helped like a charm. Thanks thanks

[oshoot]

I did the fix and continued on the install.  Looks like it worked. The website comes up. I cannot get into the back office. the admin folder is still called admin.  If I go to that page I get.

 

500 error and it cannot find the page.

I thought it would rename the admin folder but did not.  I wonder if something did not finish.  I renamed the install directory so it does not intefere with the BO.

 

Any ideas?

 

[CaterData]

On 10/26/2025 at 8:33 PM, oshoot said:

"...I cannot get into the back office. the admin folder is still called admin.  If I go to that page I get.
500 error and it cannot find the page.
I thought it would rename the admin folder but did not.  I wonder if something did not finish....
Any ideas?"

On my first try installs and fails of using Softaculous to install Prestashop a day or so ago, I had a similar thing happening where the front-end was working fine but the admin section was returning a 500 error. Softaculous was installing the 9.0.0 version of Prestashop which had big issues. I manually installed Prestashop 9.0.1 and then the admin area worked great.

You didn't mention the version you are installing so I just thought I'd give you my similar experience that I had with my first time toying with Prestashop. The cool thing about having Softaculous install Prestashop is that you can name the admin folder to whatever you want instead of that super long mess of an admin folder name the manual Prestashop install forces on you.