宝塔控制面板中，安装Imagick 扩展后，将pdf文件生成图片，报错：Exception 'ImagickException' with message 'Postscript delegate failed,详细报错信息如下：
Http status: 500 Internal Server Error
ajaxOptions: error
thrownError: Internal Server Error
Exception 'ImagickException' with message 'Postscript delegate failed `/www/wwwroot/www.centerspace.com.cn/appimage/pdfStorage/z/s3/zs3tm6yyiz4m7oj1583853012.pdf': No such file or directory @ error/pdf.c/ReadPDFImage/678'
in /www/wwwroot/www.centerspace.com.cn/addons/fecmall/fecbvc/services/product/Pdf.php:230
Stack trace:
#0 /www/wwwroot/www.centerspace.com.cn/addons/fecmall/fecbvc/services/product/Pdf.php(230): Imagick->readimage('/www/wwwroot/ww...')
#1 /www/wwwroot/www.centerspace.com.cn/addons/fecmall/fecbvc/services/product/Pdf.php(180): fecbvc\services\product\Pdf->pdf2png('/www/wwwroot/ww...')
#2 /www/wwwroot/www.centerspace.com.cn/addons/fecmall/fecbvc/services/product/Pdf.php(83): fecbvc\services\product\Pdf->generatePdfImgAndSave('42')
#3 /www/wwwroot/www.centerspace.com.cn/addons/fecmall/fecbvc/app/appadmin/modules/Catalog/controllers/ProductpdfController.php(101): fecbvc\services\product\Pdf->generatePdfImgAndZip(Array)
#4 [internal function]: fecbvc\app\appadmin\modules\Catalog\controllers\ProductpdfController->actionManagergenerate()
#5 /www/wwwroot/www.centerspace.com.cn/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#6 /www/wwwroot/www.centerspace.com.cn/vendor/yiisoft/yii2/base/Controller.php(157): yii\base\InlineAction->runWithParams(Array)
#7 /www/wwwroot/www.centerspace.com.cn/vendor/yiisoft/yii2/base/Module.php(528): yii\base\Controller->runAction('managergenerate', Array)
#8 /www/wwwroot/www.centerspace.com.cn/vendor/yiisoft/yii2/web/Application.php(103): yii\base\Module->runAction('catalog/product...', Array)
#9 /www/wwwroot/www.centerspace.com.cn/vendor/yiisoft/yii2/base/Application.php(386): yii\web\Application->handleRequest(Object(yii\web\Request))
#10 /www/wwwroot/www.centerspace.com.cn/appadmin/web/index.php(50): yii\base\Application->run()
#11 {main}
解决：linux 没有安装 ghostscript 导致的问题（pdf相关组件）
yum -y install ghostscript , 装完之后就能解决