Bug 35848 - Build failed with error "Could not write lines to file "obj\Debug\Distech.Network.Data.Portable.vbproj.FileListAbsolute.txt". The [...]"
Summary: Build failed with error "Could not write lines to file "obj\Debug\Distech.Net...
Status: RESOLVED DUPLICATE of bug 36190
Alias: None
Product: Visual Studio Extensions
Classification: Xamarin
Component: General ()
Version: 4.0.0 (C6)
Hardware: PC Windows
: --- major
Target Milestone: 4.0.0 (C6)
Assignee: Bugzilla
Depends on:
Reported: 2015-11-13 16:44 UTC by Guillaume
Modified: 2015-11-26 07:59 UTC (History)
8 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Guillaume 2015-11-13 16:44:07 UTC
# Steps to reproduce
This issue is happening randomly and I currently do not have a stable reproduction pattern.
Must of the it happens when starting multiple debug sessions from Visual Studio by switching platform iPhone or iPhoneSimulator between runs

# Expected behavior
All debug sessions should start without issues or requiring more cleaning

# Actual behavior
Sometimes the build step fails with the error message
Could not write lines to file "obj\Debug\MyPclLibrary.vbproj.FileListAbsolute.txt". The process cannot access the file 'C:\Path\To\My\Solution\MyPclLibrary\obj\Debug\MyPclLibrary.vbproj.FileListAbsolute.txt' because it is being used by another process.
My current workaround is to restart every Visual Studio instances.

# Supplemental info (logs, images, videos)

# Test environment (full version information)
## Windows
Microsoft Visual Studio Enterprise 2015
Version 14.0.23107.0 D14REL
Xamarin (4a80730)

## MAC
Xamarin.iOS 9.2.151 (Business Edition)
Comment 1 Daniel Cazzulino 2015-11-14 22:06:12 UTC
Thanks a lot for reporting this. We're investigating, but we have a pretty good idea where this is coming from, and will have a fix in place very soon.

In the meantime, could you please try the following workaround?

1 - From an administrator command prompt, open C:\Program Files (x86)\MSBuild\[4.0|12.0|14.0]\Microsoft.Common.Targets\ImportAfter\Xamarin.Common.targets
2 - Edit line #, and add the following attribute to the WriteLinesToFile element: ContinueOnError="WarnAndContinue"

Let us know if it works, since that will most likely be the fix too.

Thanks in advance!
Comment 2 Jose Gallardo 2015-11-16 07:50:54 UTC
This issue seems pretty much a duplicate of 35850.
Please feel free to reopen if the provided workaround doesn't help. For now, marking it as a duplicate to keep things tidy.
You can follow up on the other bug.

Thanks for reporting!

*** This bug has been marked as a duplicate of bug 35850 ***
Comment 3 Boris Spinner 2015-11-19 07:52:06 UTC
You are not authorized to access bug #35850.
Comment 4 Brendan Zagaeski (Xamarin Team, assistant) 2015-11-24 00:30:18 UTC
I am replacing the non-public bug from Comment 2 with a cleaned-up public duplicate of the same issue for further public tracking.

*** This bug has been marked as a duplicate of bug 36190 ***