T4“编译转换：具有相同身份的程序集” '已经导入了。尝试删除重复的引用之一。”？
我一直在努力
编译转换：具有相同标识“xxxx”的程序集已被导入。尝试删除重复引用之一。
当使用 T4 在设计时生成一些代码时 - 将几个不同的可重用模板另存为 .ttinclude 文件，并在许多不同的“父”模板中共享。
当我删除其中一个引用（在我自己的 ttinclude 文件中）时，我在这之间切换，另一种选择是：
编译转换：无法找到类型或命名空间名称“yyy”（您是否缺少 using 指令）或者程序集参考？）
兜兜转转，有什么想法吗？
I've been struggling with
Compiling transformation: An assembly with the same identity 'xxxx' has already been imported. Try removing one of the duplicate references.
When using T4 to generate some code at design time - with a couple of different reusable templates saved as .ttinclude files, and shared in a number of different "parent" templates.
I toggle between this, and the alternative when I remove one of the references (in my own ttinclude file) which is :
Compiling transformation: The type or namespace name 'yyy' could not be found (are you missing a using directive or an assembly reference?)
Going round in circles, any ideas?
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好吧，找到了一个肮脏的解决方法。
如果有人有一些建议，我会喜欢更好的解决方案/方法吗？
发布我的过程可能对其他人有帮助。
使用模板指令来放置我的模板并包含
模板进入调试模式，例如
<#@ template language="C#" debug="true" hostspecic="true"#>
弹出打开％TEMP％以查看生成的文件（最近
发生编译转换错误后已修改）。
搜索了所使用的丢失/重复的程序集/类。
发现哪些“包含”模板具有相同的引用，例如
<#@ include file="MyHelperTemplate.ttinclude"#>
和：
<#@ include file="EF.Utility.CS.ttinclude" #>
打开非自定义包含的包含文件夹
与我自己发生冲突
..\Common7\IDE\Extensions\Microsoft\Entity Framework Tools\Templates\Includes
打开此文件，删除其麻烦的导入
<#@ import namespace="EnvDTE" #>
使用新名称将其保存在同一文件夹中，并更新引用以指向此新版本，例如
<#@ include file="EF.Utility.CS.Custom.ttinclude" #>
将所需的导入放入“父”模板中，并从中删除
“包含”模板。就我而言，这是：
<#@ import namespace="EnvDTE" #>
现在它运行良好，完全没有问题，没有重复导入，并且正确引用了所有必需的程序集。
我确信有一种更复杂的方法来处理 T4 代码重用，从而完全消除这个问题。我最初尝试导入自己的自定义程序集，并使用模板的帮助程序，但是当我尝试构建自定义类库时，遇到了锁定 dll 的经典问题。
似乎 T4 Toolbox 可以通过 VolatileAssembly 自定义指令，很受欢迎，但对于我相当简单的程序来说看起来有点大材小用需要。也许当我有更多时间的时候。
Well, found a dirty workaround.
Would love a better solution / approach, if someone has some advice?
Posting my process as might be helpful to someone else.
Used the template directive to put my templates and include
templates into debug mode e.g.
<#@ template language="C#" debug="true" hostspecific="true"#>
Popped open %TEMP% to look at the generated file(s) (most recently
modified) just after getting the compiling transformation error.
Searched for the missing / doubled up assembly / class(es) used.
Found which "included" templates both had same reference e.g.
<#@ include file="MyHelperTemplate.ttinclude" #>
and :
<#@ include file="EF.Utility.CS.ttinclude" #>
Opened the include folder for the non custom include that was
causing the conflict with my own
..\Common7\IDE\Extensions\Microsoft\Entity Framework Tools\Templates\Includes
Opened this file up, removed its troublesome import
<#@ import namespace="EnvDTE" #>
Saved it with a new name in same folder and updated references to point to this new version e.g.
<#@ include file="EF.Utility.CS.Custom.ttinclude" #>
Put required imports into the "parent" templates, and removed from
the "include" template. In my case this was:
<#@ import namespace="EnvDTE" #>
Now it runs fine, no problems at all, no duplicated imports, and all required assemblies referenced correctly.
Am sure there is a much more sophisticated way of dealing with T4 code reuse which negates this problem entirely. I initially tried importing my own custom assembly, with helpers for the templates, but had what seems like a classic problem with locked dlls when I then tried to build my custom class library.
Seems T4 Toolbox has a solution to this with the VolatileAssembly Custom Directive, and is popular, but looks a bit overkill for my fairly simple needs. Maybe when I have more time.