I have created a custom module in Suite CRM but when try to upload it via Module Loader it gives this error
The zip file is missing a manifest.php file.
Cannot proceed even though the manifest.php file is there in the root directory of the module.
Seems like a permission related issue
Try setting your whole sugar instance to 755 recursively(-R 755)
Then within your sugar instance set the folders cache, custom, data, modules, & themes to 775 recursively(-R 775)
quick repair and rebuild and try installing again
You might want to check those things: