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BOOK: Beginning Android Application Development
This is the forum to discuss the Wrox book Beginning Android Application Development by Wei-Meng Lee; ISBN: 978-1-1180-1711-1
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Old January 30th, 2012, 06:04 PM
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Default Chapter 5 Using Image Views...



I ran the Gallery project on eclipse indigo 3.7.1. I get back the following error:

Dialog box

Your Project contains error(s), please fix them before running your application.

The console contains the following:

[2012-01-30 14:48:29 - Gallery] ERROR: Unknown command 'crunch'
[2012-01-30 14:48:29 - Gallery] Android Asset Packaging Tool

It should be noted that I am running Android 3.2

Ken Ford
 
Old January 30th, 2012, 08:11 PM
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Hi Ken
Ah, there's not enough information for me to make a guess. Does eclipse show any errors? Do any of the java or xml files in the project explorer have a red X on them? If so, look there. Also search for 'crunch', sounds like a typo.
Hope this helps
Cliff
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Old January 31st, 2012, 09:00 AM
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Exclamation Main.xml has ! marker

This is the XML.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />

<Gallery
android:id="@+id/gallery1"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />

<ImageView
android:id="@+id/image1"
android:layout_width="320dp"
android:layout_height="250dp"
android:scaleType="fitXY" />

</LinearLayout>

It has a yellow exclamation point next to ImageView above and
the message is "[Accerssibility] Missing contentDescription attribute on
image. This seems to be an XML coding error. It however is exactly as the
book says on page 171. Hopefully this is enough info.
 
Old January 31st, 2012, 07:48 PM
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Hi Ken
This is not the problem. The "!" is a warning. It will compile with warnings. We are looking for errors with a red "X". Another possibility is a file called 'main.out' or something like that. If it exist, it will be empty, delete it. Another thing is the error can be in any of the files in the package. In the package explorer there should be a red X on the package name, on the folders and file name, where the error exist.
Cliff
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Old February 1st, 2012, 08:10 PM
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Default Error has red x

I get a red X after I run it again. The same long-winded error message. Could I possibly have a problem trying to run code from a book about Android 2.3 that I am running in 3.2? In other words could it be that the code is not upwardly compatible with 3.2? I have run all the code learning a great deal from Chapters 1-4 and this is the first error I have run into that I cannot fix.

I am going to temporarily bypass this project and go on to the next one and hope someone sees what my error is. Thanks for the advice so far.

Ken
 
Old February 2nd, 2012, 07:32 PM
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Hi Ken
I don't think the versions have anything to do with it. I have ran some of them on the the latest version and had no problems.
Where does the red X show up? Can you post a screen shot?
Well as the US Army Armor says 'Bypass and haul ass'. Moving on may be the best thing.
Cliff
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Old February 2nd, 2012, 08:35 PM
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Angry Unexplained error.

The red x shows up at the Project name level. It Says Gallery for the project
name in the eclipse project folder and the red x is next to it

Galleryx The x is red. There are no lower level red x markers.

Grid project has exactly the same error. Baffling!!!

Somewhere there is an incompatibility. Maybe the pic1.png etc. pictures cannot be dragged and dropped into eclipse from a Microsoft directory without corrupting them. They do display correctly in the Windows viewer from inside Eclipse.

Ken
 
Old February 3rd, 2012, 07:46 PM
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Hi Ken
I have been thinking and I need to ask where you put the pic#.png files?
I put mine in drawable-mdpi, but if your device in the emulator has a higher or lower resolution they might be needed in drawable-hdpi or drawable-ldpi. If you don't know what the resolution of the emulated device is put them in all three and give a try.
Also are there any errors in log-cat?
Cliff
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Last edited by Cliff2310; February 3rd, 2012 at 07:48 PM..
 
Old February 3rd, 2012, 11:24 PM
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Wink LOG-CAT access

How do I access log-cat so I can view it. I tried putting the .png files
in all three resolution folders, low, medium and high. Did not help.

However, i think it is on the right track. I just need to look at the
log-cat file to see a description of what happens when I run to cause the
error.

Ken
 
Old February 4th, 2012, 01:42 PM
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Default

Hi Ken
Oh yes LogCat is where the errors are. Where to find it. Well it hard to remember the original state of Eclipse, but I think LogCat was default in the 'debug' view. It looks like a little green 'android'. It should be on the right side. Click on it and it should open a window with the LogCat messages. This is where the system put its nasty xxx = null and other errors messages. It is also where all your
Code:
 "Log.d (tag, "message");"
will show up.
To get it in the 'Java' and other views. In Eclipse open the 'Window' button and select 'Show View', when that opens, about 7 down is 'LogCat'.
Darn, I took a screen shot of the LogCat panel but I can't find a way to insert it in to this message(?). If you expand it to full size, the white square in the upper right, when you 'minimize' LogCat will drop out of sight on to menu bar on the bottom. After that when you open LogCat, it will drop back down whenever you click anywhere else in Eclipse. If you what it to stay around click the image on the fare left of that menu bar, looks like two small windows. That will bring it back to be 'sticky'.
Cliff
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