小编nou*_*med的帖子

我有几个类文件.但是现在我添加了新的模型类并尝试键入add-migration InitialCreate.但是我收到以下错误.

PM> add-migration InitialCreate
Exception calling "LoadFrom" with "1" argument(s): "Could not load file or assembly 'file:///C:\Users\user\Documents\Visual Studio 2013\Pro
jects\DigitalHealthWebPrev\packages\EntityFramework.6.1.3\tools\EntityFramework.PowerShell.Utility.dll' or one of its dependencies. Operati
on is not supported. (Exception from HRESULT: 0x80131515)"
At C:\Users\user\Documents\Visual Studio 2013\Projects\DigitalHealthWebPrev\packages\EntityFramework.6.1.3\tools\EntityFramework.psm1:780 c
har:62
+     $utilityAssembly = [System.Reflection.Assembly]::LoadFrom <<<< ((Join-Path $ToolsPath EntityFramework.PowerShell.Utility.dll))
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException

You cannot call a method on a null-valued expression.
At C:\Users\user\Documents\Visual Studio 2013\Projects\DigitalHealthWebPrev\packages\EntityFramework.6.1.3\tools\EntityFramework.psm1:781 c
har:50
+     $dispatcher = $utilityAssembly.CreateInstance <<<< …

我想得到图像的路径.我使用了closest和find方法,但日志显示undefined.我怎样才能得到这条路？我正在使用$(this)关键字,因为我想获得所选选项的路径.

    <section class="regular slider">
    <?php 
    foreach($todays_offers as $offer){ 
    ?>
    <div class="product-container col-xs-12" >
    <div class="product-left">
    <div class="product-thumb">
    <a class="product-img detail" href="#" > 
     >
     <img  src='<?php echo base_url("images/$image")?> ' alt="<?php echo $product_name?>" ></a>
    </div>
    </div>
    <div class="half">
    <div class="product-right">
    <div class="product-brand ">
    <?php echo ucfirst($brand); ?>
    </div>
    <div class="product-name " style="height: 40px;
     overflow: hidden;line-height:17px;">
    <a href="#"><?php echo $product_name ?></a>
    </div>
    <?php
            $sql ="SELECT * FROM materials where product_name='".$product_name."' ORDER BY retail_price ASC";

            $query1 …