blocks|key|1588624|text|假设您可以访问您的库的源。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1588625|给你想要调用的库一个强名称。|unordered-list-item|1588626|将[大会:部分信托人]添加到您要调用的库中。|offset|length|1588627|创建代码组以设置库的权限|1588628|给出了一个非常好的详细解释，这里还阅读了底部的链接，以获得更好的理解。|1588629|问题可能不是您的程序集，但您正在调用另一个不允许部分受信任的调用者的程序集。在运行时，您可以使用杂色查找哪个程序集会给您带来问题。如果这是问题所在，并且您有此程序集的源，则还需要将[大会:部分信托人]属性应用于该程序集，如果您没有源，那么我所知道的唯一选项就是替换麻烦的库。|1588630|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.security.allowpartiallytrustedcallersattribute.aspx|1|http://support.microsoft.com/kb/839300|2|http://msdn.microsoft.com/en-us/library/e74a18c4%2528VS.71%2529.aspx|3^0|0|0|1|A|0|0|0|E|2|1|0|1C|2|2|2I|A|3|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|12|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|13|8|@]|9|@$G|14|H|15|1|16]]|A|$]]|$1|I|3|J|5|D|7|17|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|18|8|@]|9|@$G|19|H|1A|1|1B]]|A|$]]|$1|M|3|N|5|6|7|1C|8|@]|9|@$G|1D|H|1E|1|1F]|$G|1G|H|1H|1|1I]]|A|$]]|$1|O|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]|Y|$5|R|S|T|A|$U|Z]]|10|$5|R|S|T|A|$U|V]]]]

Assuming you have access to the sources of your library.

<ul>
<li>Give the library you are trying to call a strong name.</li>
<li>Add <a href="http://msdn.microsoft.com/en-us/library/system.security.allowpartiallytrustedcallersattribute.aspx" rel="noreferrer">[assembly:AllowPartiallyTrustedCallers]</a> to the library that you are trying to
call. </li>
<li>Create a code group to set permissions to the library</li>
</ul>

A pretty good and detailed explanation is given <a href="http://support.microsoft.com/kb/839300" rel="noreferrer">here</a> Also read the links at the bottom to get a better understanding.

There is a possibility that not your assembly is the problem but you are calling another assembly that does not allow partially trusted callers. At runtime you can use <a href="http://msdn.microsoft.com/en-us/library/e74a18c4%28VS.71%29.aspx" rel="noreferrer">fuslogvw</a> to find which assembly is giving you the problems. If this is the problem and you have the sources of this assembly you need to also apply the <a href="http://msdn.microsoft.com/en-us/library/system.security.allowpartiallytrustedcallersattribute.aspx" rel="noreferrer">[assembly:AllowPartiallyTrustedCallers]</a> attribute to that assembly, if you don't have the sources the only option I know of is to replace the troublesome library.

blocks|key|1588760|text|就我而言-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1588761|这解决了一个类似的问题：|1588762|我必须去我的dll属性，|1588763|然后按下“解除阻塞”按钮：|1588764|📷|atomic|offset|length|1588765|​|1588766|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/dca2dfcbee5063b7eefa4be0a0696c7f.png|imageAlt^0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Z|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|10|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|11|8|@]|9|@$K|12|L|13|1|14]]|A|$]]|$1|M|3|N|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V|W|-4]]]]

In my case -

This solved a similar problem:

I had to go to my dll properties, 
And press the Unblock button:
<a href="https://i.stack.imgur.com/KzCGs.png" rel="noreferrer"><img src="https://i.stack.imgur.com/KzCGs.png" alt="enter image description here"></a>

blocks|key|1588678|text|我知道现在回答已经很晚了，但为了帮助未来的访客，我想再加一个答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1588679|我的场景|offset|length|style|BOLD|1588680|在我的CCavenue应用程序中实现asp.net支付网关时，由于CCavenue加密MCPG.CCA.Util，我遇到了这个问题。|CODE|1588681|web.config+请在中添加以下行|1588682|<system.web>

++<trust+level="Full"+/>

</system.web>|code-block|syntax|javascript|1588683|entityMap^0|0|0|4|0|I|7|17|D|0|0|A|B|2|0|A|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@$D|V|E|W|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@$D|Y|E|Z|F|J]|$D|10|E|11|F|J]]|9|@]|A|$]]|$1|K|3|L|5|6|7|12|8|@$D|13|E|14|F|G]|$D|15|E|16|F|G]|$D|17|E|18|F|J]]|9|@]|A|$]]|$1|M|3|N|5|O|7|19|8|@]|9|@]|A|$P|Q]]|$1|R|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|S|$]]

I know its quite late to answer, but I would like to add one more answer just to help future visitors.

My Scenario

I was implementing CCavenue Payment gateway in my <code>asp.net</code> application when I had this issue becuase CCavenue encryption <code>MCPG.CCA.Util</code>

Please add the following lines in <code>web.config</code>

<pre><code>&lt;system.web&gt;

 &lt;trust level="Full" /&gt;

&lt;/system.web&gt;
</code></pre>

blocks|key|391605|text|我知道这是一个很老的问题，但我只是碰到了这个问题，并且能够用与公认的答案不同的方法解决这个问题，而且由于这是google搜索错误信息时的第一个结果，我认为如果我分享我的解决方案，它将对其他人有用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|391606|当我试图与一块硬件集成时，我遇到了一个问题。硬件有自己的安装程序，可以将DLL注册到GAC中。它安装的DLL有两个依赖项DLL，但由于某种原因，在运行安装程序时，它没有注册依赖项DLL。|391607|基本上，情况是条目DLL在GAC中注册，它的两个依赖DLL没有在GAC中注册，而是存在于可执行文件的旁边。|391608|当我运行我的程序并试图使用该硬件时，该程序正在寻找可执行文件旁边的条目DLL，但它找不到。然后，该程序将转到GAC，在那里它将找到条目DLL。一旦进入硬件的DLL，它最终将尝试使用依赖DLL，这些DLL不是在GAC中，而是在可执行文件的旁边。从GAC调用到可执行文件旁边的DLL将引发部分受信任的调用方错误。|391609|我通过在可执行文件旁边放置条目DLL的副本来解决这个问题。|391610|我很好奇什么样的场景会起作用，什么会导致安全错误，我发现这些场景都像预期的那样起作用：|391611|可执行文件旁边的所有三个DLL。|ordered-list-item|391612|GAC中的所有三个All。|391613|唯一持续失败的情况是，当任何层都在GAC内部，而任何依赖DLL都在GAC之外时。|391614|失败方案1：|391615|GAC中的条目DLL|391616|DLL+#2和DLL+#3在Exe旁边。|391617|-+Fails+siting+DLL+#2+as+the+faulting+DLL.|code-block|syntax|javascript|391618|​|391619|失败方案2：|391620|在GAC中输入DLL和DLL+#2|391621|DLL+#3位于Exe旁边。|391622|-+Fails+siting+DLL+#3+as+the+faulting+DLL.|391623|391624|失败方案3：|391625|在GAC中输入DLL和DLL+#3|391626|DLL+#2在exe旁边|391627|-+(Predictably)+Fails+siting+DLL+#2+as+the+faulting+DLL.|391628|391629|我没有测试它，但是我认为，如果条目DLL和DLL+#3在可执行文件旁边，而DLL+#2在GAC中，那么它就会出现错误，因为DLL+#3被认为是问题所在。|391630|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1T|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|1U|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|1V|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1W|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|1X|8|@]|9|@]|A|$]]|$1|O|3|P|5|N|7|1Y|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|20|8|@]|9|@]|A|$]]|$1|U|3|V|5|N|7|21|8|@]|9|@]|A|$]]|$1|W|3|X|5|N|7|22|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|10|7|23|8|@]|9|@]|A|$11|12]]|$1|13|3|14|5|6|7|24|8|@]|9|@]|A|$]]|$1|15|3|16|5|6|7|25|8|@]|9|@]|A|$]]|$1|17|3|18|5|N|7|26|8|@]|9|@]|A|$]]|$1|19|3|1A|5|N|7|27|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|10|7|28|8|@]|9|@]|A|$11|12]]|$1|1D|3|14|5|6|7|29|8|@]|9|@]|A|$]]|$1|1E|3|1F|5|6|7|2A|8|@]|9|@]|A|$]]|$1|1G|3|1H|5|N|7|2B|8|@]|9|@]|A|$]]|$1|1I|3|1J|5|N|7|2C|8|@]|9|@]|A|$]]|$1|1K|3|1L|5|10|7|2D|8|@]|9|@]|A|$11|12]]|$1|1M|3|14|5|6|7|2E|8|@]|9|@]|A|$]]|$1|1N|3|1O|5|6|7|2F|8|@]|9|@]|A|$]]|$1|1P|3|-4|5|6|7|2G|8|@]|9|@]|A|$]]]|1Q|$]]

I know this is a very old question but I just ran into this issue and was able to fix it using a different method than the accepted answer and since this is the first result on google when searching for the error message I think it will be useful to others if I share my solution.

The issue I was running into came about when I attempted to integrate with a piece of hardware. The hardware had its own installer which would register a DLL into the GAC. The DLL it installed had 2 dependency DLLs but for some reason when the installer was run it was not registering the dependency DLLs. 

Basically the scenario was that the Entry DLL was registered in the GAC and its two dependency DLLs were not registered in the GAC but did exist next to the executable. 

When I ran my program and attempted to use the piece of hardware, the program was looking for the entry DLL next to the executable, which it could not find. The program would then go to the GAC, where it would find the entry DLL. Once inside the DLL for the hardware it would eventually try to use the dependency DLLs which were not in the GAC but were next to the executable. Calling out of the GAC to the DLL that was next to the executable was throwing the partially trusted caller error. 

I resolved this by placing a copy of the entry DLL next to the executable. 

I was curious as to what scenarios would work and what would cause the security error and I've found these are the scenarios that worked as expected:

<ol>
<li>All three of the DLLs next to the executable.</li>
<li>All three DLLs in the GAC.</li>
</ol>

The only scenario that consistently failed was when any layer was inside the GAC and any of the dependency DLLs were outside the GAC. 

Failed Scenario #1: 

<ol>
<li>Entry DLL in the GAC</li>
<li>DLL #2 and DLL #3 next to the Exe

<ul>
<li>Fails siting DLL #2 as the faulting DLL.</li>
</ul></li>
</ol>

Failed Scenario #2:

<ol>
<li>Entry DLL and DLL #2 in the GAC</li>
<li>DLL #3 next to the Exe

<ul>
<li>Fails siting DLL #3 as the faulting DLL.</li>
</ul></li>
</ol>

Failed Scenario #3:

<ol>
<li>Entry DLL and DLL #3 in the GAC</li>
<li>DLL #2 next to the exe

<ul>
<li>(Predictably) Fails siting DLL #2 as the faulting DLL.</li>
</ul></li>
</ol>

I did not test it but I think its a safe assumption to say that if the entry DLL and DLL #3 had been next to the executable and DLL #2 had been in the GAC then it would have faulted with DLL #3 being sited as the problem.

blocks|key|391662|text|我也遇到了类似的问题，我尝试了以上所有的答案，但没有一个对我有用。显然，我的情况不同，在我的例子中，框架是3.5。我把它改成了4或更高，它对我很管用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|391663|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I also got the similar problem, I tried all the above answers but none worked for me. Apparently my case was different, In my case the framework was 3.5. I changed it to 4 or above and it worked for me.

blocks|key|1943742|text|这里还有另一个可能的解决方案，取决于您使用的库和安装程序:确保您在“本地”驱动器上运行您的程序。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1943743|当我在VM中运行我的程序时，在主机和客户操作系统共享的文件夹中运行这个错误消息，库dll就在exe旁边。将文件夹复制到本地驱动器到客户操作系统，修复了问题。|1943744|这是合理的，这将导致信任问题，但更有帮助的错误信息将是很好的。|1943745|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Here's yet another possible solution, depending on the library you're using and your setup: Make sure you're running your program from a "local" drive.

I ran into this error message when running my program in a VM in a folder shared between host and guest OS, with the library dll present beside the exe. Copying the folder to a drive local to the guest OS fixed the issue.

It makes sense that this would cause a trust issue, but a more helpful error message would be nice.

How do I change my library to allow partially trusted callers? 

I get the following error:

<blockquote>
 Server Error in '/' Application.
 
 Security Exception
 
 Description: The application attempted
 to perform an operation not allowed by
 the security policy. To grant this
 application the required permission
 please contact your system
 administrator or change the
 application's trust level in the
 configuration file.
 
 Exception Details:
 System.Security.SecurityException:
 That assembly does not allow partially
 trusted callers.
 
 Source Error: [No relevant source
 lines]
 
 Source File: App_Web_kzj7vfkn.2.cs 
 Line: 0
</blockquote>

<h2>Edit</h2>

After some more looking at the problem it seems like it's System.Web.UI.ClientScriptManager that causes the problem

Assembly does not allow partially trusted caller

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如何更改我的库以允许部分信任的调用方？我得到以下错误：'/‘应用程序中的服务器错误。安全异常说明:应用程序试图执行安全策略不允许的操作。若要授予此应用程序所需的权限，请与系统管理员联系，或更改该应用程序在配置文件中的信任级别。异常详细信息: System.Security.SecurityException:该程序集不允许部分受信任的调用方。源错误:没有相关的源行源文件: App_Web_kzj7

问程序集不允许部分信任的调用方。
EN

回答 6

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