'C# Couldn't process file xxx.resx due to its being in the Internet or Restricted zone or having the mark of the web on the file

I have an issue while I try to build project in VS2012.

It cannot build due to the error:

Couldn't process file xxx.resx due to its being in the Internet or Restricted 
zone or having the mark of the web on the file. Remove the mark of the web if 
you want to process these files.

Here is a similar question.

but I tried that option and had no luck, because I did not download the file from the internet. That project was built from scratch. In project after selecting Properties, in Windows Explorer nothing happened. I do not have the "unblock" option, only the default three options (read only, hidden, and archived).

I have the same error and cannot build or rebuild the project. I have a theory that it is a recent error after updating Windows. Before the update, everything worked fine. Any ideas?

Solution 1:^[1]

Go to xxx.resx file in Windows File Explorer. Right-click and select properties. At the bottom of the the dialog is an "unblock" option:

Check this and click Apply. Clean your solution and it will build.

Solution 2:^[2]

In my case I had the same problem with many files.

My solution with VS Prof. 2017 V15.95 was:

Open powershell and execute dir -Path [directory path] -Recurse | Unblock-File
Rebuild all

Solution 3:^[3]

On the solution folders locate abc.resx.
Open the file using any text editor, preferably Notepad++.
Locate and delete any node starting with <data

Example. This is what you should delete.

<data name="$this.Icon" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
        AAABAAMAICAAAAEAIACoEAAANgAAAGBgAAABACAAqJQAAN4QAACAgAAAAQAgACgIAQCGpQAAKAAAACAA
        AABAAAAAAQAgAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 
         ///////////8AAB///////// 
     </value> 
 </data>

Reload or reopen your solution and build. You are ready to go.

Solution 4:^[4]

Had the same problem after updating to VS 2017 v15.8.5, and none of the solutions above or on other forums worked for me.

So, since a .resx file is just XML, I just copied the content, deleted the original file and recreated it with the copied content.

That was the only thing that worked, and it worked first time.

Solution 5:^[5]

A quick way to remove this mark of the web for multiple files and folders recursively for me was to

Zip them up.
Delete originals.
Unzip.

Solution 6:^[6]

I'm not really sure either, I have the exact same issue.

But, what i did, was hit view in file explorer.

Then, i clicked show hidden items.

Finally, i went back to my folder and clicked on the .vs folder, my project/file name, v15, Server, sqlite3, and deleted DB.Lock.

I reopened the project, clicked build, and it worked perfectly.

This worked for me, it might/might not for you.

Solution 7:^[7]

I also encountered this issue recently. The error began occurring after I set the icon of a Windows Form.

Researching for the cause and solution almost led me nowhere, because I did not download the icon from the internet, nor was I referencing a web-based icon file. It was stored entirely on my local machine.

After some more researching and digging around, I was able to figure out exactly what was causing the problem. I have Microsoft One-Drive installed on my machine. The directory in which the icon file was located is managed/synced by One-Drive. That fact was somehow tricking Visual Studio into believing the file was located or downloaded from the internet.

The solution proved to be very simple. I removed the icon from the form, as well as from the corresponding .resx file. Then I moved the icon file to another directory not associated with One-Drive. Finally, I was able to use that icon in my Windows Forms application without getting this error.

I understand there are other possible causes for this error. But if in your case, the issue happened after setting a form's icon--and if you have One-Drive (or perhaps another cloud-based storage solution) installed--then check to be sure that icon file is not in a directory managed by that service. If so, relocate it and change the form's icon property to point to the new location.

Solution 8:^[8]

To fix this for multiple files within a project, Visual Studio -> Tools -> Options -> Trust Settings and add the project path as a trusted path.

Solution 9:^[9]

I had the same issue in Windows 10 VS 2019 16.4.457 (previous version of VS 2019 had no problems).

The "marked for web" error shows only after I moved the project under One-Drive. If I move the project back to a local drive the error doesn't show. As Anthony Gingrich suggested, I tried to move the project images to a local directory without success.

The solution that works for me was, for each image, in the "Select Resource dialog" use "Project resource file" instead "Local resouce".

Solution 10:^[10]

Please guys, I already fixed the issue, this is cause by OneDrive, please close your OneDrive with the use of task manager or close the icon OneDrive's Hidden Icons on the taskbar

Solution 11:^[11]

Using VS 2019, and building against source stored on an Azure shared file system. I think I may have just tracked down a work-around, and it has to do with the Icon as referenced above by Jake above. If I add the icon to the form's resource file (that really long string), The error occurs.

However, if I add the Icon to the Project's resources, delete the Icon from the form's resource file, and change form to set the Icon manually...

this.Icon = MyProjectName.Properties.Resources.MyIcon;

The error goes away.

Solution 12:^[12]

I just ran into the same issue and also tried the Unblock option from explorer with no luck. I even restarted VS with no luck.

However, I'm not sure which combination did the trick but I opened the form as well as the resx file from within VS, just to see if I can open it, which opened fine. I then did a clean and rebuild and that appeared to do the trick. If it doesn't try restarting VS after the clean then rebuild.

Solution 13:^[13]

I had a similar issue and the problem was an image that I had downloaded and added to my Resources. Not completely sure why that was the only image that gave me problems, however, I opened my abc.resx file giving me issues an a text editor, removed the node starting with " (it was the last and only node) just like Albert Alberto mentioned. Saved the changed, cleaned and rebuilt my solution and it all works! The image didn't render but it only took a second to go back and add the image. It wasn't removing the entire file, just the node that was causing the issue.

Solution 14:^[14]

I found this solution on another forum. My project resided on a file share, so I had to enter file://[file share] for Step 4 below. I am running VS2019 on Windows 10.

Start Menu > type 'Internet Options'.
Select Local intranet zone on the Security tab then click the Sites button
Click Advanced button
Enter file://[computer name] or file://[file share]
Make sure 'Require server verification...' is unticked

Solution 15:^[15]

I had the same problem on Windows 10, VS 2017 (15.9.13). I sent myself a project from work through Dropbox so I could try a couple of things from home. But when I tried to build it VS gave me the 'marked for web' error.

After trying the solutions above without success I began experimenting. I was able to solve this by using the method listed above (right click -> properties -> unblock), but I had to do it for each of the images in the Resource folder--and I had to do EACH FILE individually since the 'unblock' option was not available on group-selects. I actually unblocked each source file in the project as well before trying to rebuild so I am not sure if both are required.

Its a bit of a pain--probably a huge pain for larger projects--but it absolutely got the project building again.

EDIT: I did find this article afterwards about unblocking entire folders--even recursively but have not tried it: https://www.winhelponline.com/blog/bulk-unblock-files-downloaded-internet/

Solution 16:^[16]

None of these worked for me. I fixed it by converting the embedded base64 into a linked resource:

I found out the issue was with the embedded base64 image I had in the .resx (as the issue went away removing the data tag as explained in this question but that meant I removed the image) so I converted the embedded image into a .png file and made a link to that in the .resx.

To do that: open the .resx file in Visual Studio 2019 and double-click the image, and then click Ok and Yes in the following prompts that will appear so VS will convert the embedded image into a linked resource (sorry I can't upload pictures yet):

Hope it helps!

From my original comment.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Mooseman
Solution 2	Ethan
Solution 3	MikeH
Solution 4	Martin Abbott
Solution 5	Ditto
Solution 6
Solution 7	Anthony Gingrich
Solution 8	Cody J. Mathis
Solution 9	Cristian
Solution 10	Julius Petre
Solution 11	Roger
Solution 12
Solution 13	Jake
Solution 14	gpraceman
Solution 15
Solution 16	Ethan

'C# Couldn't process file xxx.resx due to its being in the Internet or Restricted zone or having the mark of the web on the file

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