error: This operation would create an incorrectly structured document

Question

I keep trying to install the entity framework 6 and it always rolls back with the error of

error: This operation would create an incorrectly structured docum         


        

Answer 1

I had the same problem, and discovered the cause was the element in the web.config file. In my case, I changed this:

<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">

to this:

<configuration>

That fixed it.

Answer 2

I had the same problem. It turned out that I was adding EF to one of my really old projects and web.config had this namespace defined for <configuration /> element:

<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">

Removing that namespace declaration (xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0") helped and solved this issue.

Answer 3

When Entity Framework is upgraded, the app.config or web.config files will get stuff written into them. I suspect that might be the problem. Take a look at your app.config or web.config files. Maybe the EF upgrade is having trouble writing to them without making an invalid xml document.

Answer 4

In a web app, web.config had a reference to external app.config:

<appSettings configSource="App.config" />

This requires the App.config to be in a particular format, that EntityFrameworks installer considers invalid

So, like others, the key was to:

• rename/delete the App.config

• Install EF

• bring back the App.config

Answer 5

It is to do with your configuration files. Just to detail the solution I found:

First save your app.config, packages.config and web.config

Then delete them all. I actually deleted app.config and packages.config and just cleared out the lines between and in the web.config.

Then I ran the Install-Package again, all went well, then I added back in my configuration.

Answer 6

I had the same issue and I modified my web.config from

(<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">)

To

(<configuration>)