Blank white page when finished uploading files to server laravel5 - laravel

Question

I have finished uploading files to server inside demo folder, but when i visited i got blank white page. when i visited somedomain.com/demo i got blank white page. Can anyone help me please. My folder directory start with demo. Inside demofolder i have app,bootstrap,config etc folders.
when i view storage/log file i got
[2015-09-20 06:38:00] local.ERROR: exception 'Symfony\Component\Debug\Exception\FatalErrorException' with message 'Call to undefined method Illuminate\Foundation\Application::getCachedCompilePath()' in C:\xampp\htdocs\sidinsu\project\vendor\laravel\framework\src\Illuminate\Foundation\Console\ClearCompiledCommand.php:28
Stack trace:
#0 {main}
[2015-09-20 06:52:16] local.ERROR: exception 'Symfony\Component\Debug\Exception\FatalErrorException' with message 'Call to undefined method Illuminate\Foundation\Application::getCachedCompilePath()' in C:\xampp\htdocs\sidinsu\project\vendor\laravel\framework\src\Illuminate\Foundation\Console\ClearCompiledCommand.php:28
Stack trace:
#0 {main}
[2015-09-20 06:53:23] local.ERROR: exception 'Symfony\Component\Debug\Exception\FatalErrorException' with message 'Call to undefined method Illuminate\Foundation\Application::getCachedCompilePath()' in C:\xampp\htdocs\sidinsu\project\vendor\laravel\framework\src\Illuminate\Foundation\Console\ClearCompiledCommand.php:28
Stack trace:
#0 {main}
[2015-09-20 06:58:28] local.ERROR: exception 'Symfony\Component\Debug\Exception\FatalErrorException' with message 'Call to undefined method Illuminate\Foundation\Application::getCachedCompilePath()' in C:\xampp\htdocs\sidinsu\project\vendor\laravel\framework\src\Illuminate\Foundation\Console\ClearCompiledCommand.php:28
Stack trace:
#0 {main}

Answer 1

The blank page suggests a 500 error and your logs back this up.
Looking at your logs it is an issue with the vendor/compiled.php file.
Just delete this file, run composer update, and then php artisan optimize after the update to rebuild compiled.php.
On a side note, the URL to view this should be somedomain.com/demo/public as this is where the index.php file is located - unless you have already dealt to this.

Answer 2

When you move Laravel 5 to a production server please do the following:
Change permissions of storage and bootstrap folders to 0755 or 0777 chmod -R 0777 storage/
composer install
composer update
artisan cache:clear
This will resolve your dependencies and make laravel functional.
When you get packages conflicts after doing the above steps remove the packages from app/config/app.php and delete their folders from vendor and run composer update.
Also make sure you will meet Laravel 5 minimum requirements. PHP 5.5.9 is required.