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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(25.6, 52%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESE%3C/text%3E%3C/svg%3E)
After upgrading to VS2019 v16.10 I am having issue with building XF.iOS project. I am getting the following error:
Error MessagingRemoteException: An error occurred on client Build1610000228 while executing a reply for topic xvs/build/execute-task/<my_project_name>/2c07d71002fACTool
IOException: Sharing violation on path /Users/shantimohan/Library/Caches/Xamarin/mtbs/builds/<my_project_name>/2c07d71b54eeb7c0bcd8920433a7ab7c8b9abca4e6d8d70ece925ba74d3add9c/Assets.xcassets/AppIconSet7.appiconset/Contents.json
This is a previously running project. There is no such directory /Users/shantimohan.
What's the meaning of this error and how do I remedy it?
ThanQ...
Hi @Shantimohan Elchuri ,have you tried to downgrade your VS just as FlemmingJuul-3206 mentioned?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(163.2, 86%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAG%3C/text%3E%3C/svg%3E)
I'm also having the same issue.
No, I haven't tried it as it is reported in this Visual Studio Feedback on this issue that downgrading VS is also not helping. Besides unable to get VS 16.9 Release download links. Even then for present I am inclined to downgrade as my other solutions are working fine on VS 16.10. I Intend to wait for next update to VS.
So I would like to wait for a while.
Go and upvote in Visual Studio Feedback forum for the same issue. I was 41st person to upvote 3 days back. Currently a total of 57 have upvoted on the issue. Hope MS Xamarin team resolves this issue on priority basis.
With the release of VS 16.10.2 this issue is resolved. Thanks to @Pascal Pereira for referring the VS feedback thread on this issue.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(294.40000000000003, 45%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFJ%3C/text%3E%3C/svg%3E)
Apparently there is a bug in VS2019, 16.10.0 - according to this post:
https://stackoverflow.com/questions/66819741/xamarin-ios-wont-build-sharing-violation-on-path-for-asset-catalog-file-conte
The file should be on the Mac that builds the project.
To fix this you might have to downgrade your VS.
Regards
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(22.400000000000002, 30%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVA%3C/text%3E%3C/svg%3E)
Manually creating the "mtbs\builds" folder in "users\<YOUR_USERNAME>\Library\Caches\Xamarin" on the Mac fixed it for me. I did not add the <PROJECT_NAME> sub-folder. This may not be pertinent but I also deployed to the simulator before deploying to the device.
The folder .../mtbs/builds/ folder is already there but not my project's subfolder.
Sorry, I was mistaken. My project's directory is present. Also the Contents.json is also present, besides 18 .png files, in the given folder.
All these files were having -rw-r--r-- permissions.
Actually I have two solutions with same name in two different directories named AXLS, AXM. These two differ in certain references. Otherwise all logic and assets are same.
I have problem in only in the AXM solution. The AXLS solution runs normally as other XF.iOS projects.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(57.599999999999994, 24%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPP%3C/text%3E%3C/svg%3E)
this is a bug in 16.10... please see
https://developercommunity.visualstudio.com/t/xamarinforms-ios-ioexception-sharing-violation-on/1355811
if you come across this, please click on the link above AND upvote this issue to get focus from MSFT. this is a blocking issue for many
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(297.6, 3%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECR%3C/text%3E%3C/svg%3E)
I rolled back to version VS 16.9.2 (Professional) and was able to get past this issue and create my distribution.