Bug 55561 - "Processing" messages spam Android build output
Summary: "Processing" messages spam Android build output
Alias: None
Product: Android
Classification: Xamarin
Component: MSBuild ()
Version: 7.2 (15.1)
Hardware: PC Windows
: Low normal
Target Milestone: ---
Assignee: dean.ellis
Depends on:
Reported: 2017-04-25 14:34 UTC by Edward Brey
Modified: 2017-06-27 11:05 UTC (History)
2 users (show)

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

Output from building the per the repro (137.57 KB, text/plain)
2017-04-25 14:34 UTC, Edward Brey

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Description Edward Brey 2017-04-25 14:34:18 UTC
Created attachment 21763 [details]
Output from building the per the repro

Even with the MSBuild projects build output set to Minimal, the Android build output is voluminous, 731 lines for a trivial project. Most lines appear twice. This makes it hard to see real issues. For example, for some projects (but not in this simple repro), there are warnings that appear right after the line showing the dll output, which don't appear in the Error List window. Those warnings are dwarfed by hundreds of "processing" messages on either side of them.

* VS2017
* Xamarain.Android SDK
* JDK: 1.8.0_112 (latest installed via VS2017)
* Android NDK: r13b (latest installed via VS2017)
* Android SDK: 7.1 (latest installed via Android Studio)
* MSBuild projects build output setting: Minimal

1. Create new project: Blank App (Android)
2. Install-Package Xamarin.Forms -DependencyVersion Highest
3. Build

Results: Hundreds of lines like this, each appearing twice: "Processing: {path}.xml"
Comment 1 Edward Brey 2017-04-25 14:36:14 UTC
Forgot a step in the repro:
2.1: Add latest prerelease version of NuGet package Xamarin.Android.Support.Annotations. (This works around bug 52944.)
Comment 2 Edward Brey 2017-04-25 16:41:18 UTC
An example of an warning that gets buried among the spam is bug 55573.
Comment 3 Mark McLemore 2017-06-26 18:59:46 UTC
Confirmed. When I create a blank Android app, add Xamarin.Forms (as above) and build, my output total is 735 lines:

cat output.txt | wc -l

There is quite a lot of duplication in this output -- eliminating dupes in the output (below) decreases the line count to 369:

cat output.txt | sort | uniq | wc -l
Comment 4 dean.ellis 2017-06-27 11:05:32 UTC
PR up https://github.com/xamarin/xamarin-android/pull/673