Bug 57860 - AndroidManifest.xml line numbers off by one
Summary: AndroidManifest.xml line numbers off by one
Alias: None
Product: Android
Classification: Xamarin
Component: MSBuild ()
Version: 8.0 (15.4)
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: dean.ellis
Depends on:
Reported: 2017-06-29 14:03 UTC by Edward Brey
Modified: 2017-07-10 06:14 UTC (History)
3 users (show)

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

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Description Edward Brey 2017-06-29 14:03:15 UTC
If you have an error in AndroidManifest.xml, the line number that appears in the Visual Studio Output window is off by one line. For example, I ran into this error:

3>C:\Users\Brey\Code\Watertight\Mobile.Android\obj\Debug\android\manifest\AndroidManifest.xml(11): error APT0000:  Error: No resource found that matches the given name (at 'icon' with value '@drawable/icon').

However, the error was really on line 10, not line 11. The same was true for the other errors in the file.
Comment 1 Jon Douglas [MSFT] 2017-07-05 16:30:29 UTC
Hi Edward,

Can you please attach a sample project that is in the state of showing this error? Perhaps this can be fixed with some better linting or ensuring the line numbers match up. 

What I believe is happening is that you are being mislead by the Properties\AndroidManifest.xml's line number vs. the final generated in obj\Debug\android\AndroidManifest.xml

Here's an example:

I have 5 lines in my Properties\AndroidManifest.xml(It's hard to show if Bugzilla word wraps, but stay with me):

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="App21.App21" android:versionCode="1" android:versionName="1.0">
  <uses-sdk android:minSdkVersion="16" />
  <application android:label="App21" android:icon="@drawable/icon1"></application>

This generates the following error on Line 8 (Which shouldn't even exist because I only have 5 lines!)

Error: No resource found that matches the given name (at 'icon' with value '@drawable/icon1').	App21	c:\users\dougl\documents\visual studio 2017\Projects\App21\App21\obj\Debug\android\manifest\AndroidManifest.xml	8	

However if I look at Line 8 of the generated obj\Debug\android\AndroidManifest.xml

It does indeed fall on the correct line number:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="App21.App21" android:versionCode="1" android:versionName="1.0">
  <!--suppress UsesMinSdkAttributes-->
  <uses-sdk android:minSdkVersion="16" />
  <uses-permission android:name="android.permission.INTERNET" />
  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
  <application android:label="App21" android:icon="@drawable/icon1" android:name="android.app.Application" android:allowBackup="true" android:debuggable="true">
    <activity android:icon="@drawable/icon" android:label="App21" android:name="md5c19661293df25ab8ed245319da3cf45c.MainActivity">
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    <provider android:name="mono.MonoRuntimeProvider" android:exported="false" android:initOrder="2147483647" android:authorities="App21.App21.mono.MonoRuntimeProvider.__mono_init__" />
    <!--suppress ExportedReceiver-->
    <receiver android:name="mono.android.Seppuku">
        <action android:name="mono.android.intent.action.SEPPUKU" />
        <category android:name="mono.android.intent.category.SEPPUKU.App21.App21" />

Thus I am marking this bug as NEEDINFO until we have a sample project demonstrating the 1-off scenario.
Comment 2 Edward Brey 2017-07-08 13:07:51 UTC
Here's a repro:

1. Create a new blank C# Android project.
2. In AndroidManifest.xml, change the application element to look like this:

<application android:label="MyAndroidProject" android:noelement="none"></application>

3. Build.

The result is this error:

AndroidManifest.xml(8): error APT0000:  No resource identifier found for attribute 'noelement' in package 'android'

4. Double-click the error.

The result is that it takes you to line 8 of the generated AndroidManifest.xml. However, the error is actually on line 7.
Comment 3 Prashant [MSFT] 2017-07-10 06:14:43 UTC
As per the comment #2, I am able to reproduce this issue the line number reported is a always +1 in the generated manifest file in obj\Debug\android\manifest\AndroidManifest.xml (see comment #1)