[TIMOB-19707] iOS: Error: "DefaultIcon.png cannot be used because it contains an alpha channel"

GitHub Issue	n/a
Type	Bug
Priority	High
Status	Closed
Resolution	Fixed
Resolution Date	2015-10-28T01:21:18.000+0000
Affected Version/s	n/a
Fix Version/s	Release 5.1.0
Components	CLI, iOS
Labels	n/a
Reporter	Jeff Haynie
Assignee	Chris Barber
Created	2015-10-09T23:35:05.000+0000
Updated	2015-10-28T18:15:00.000+0000

Description

To create: * appc use 5.0.0 * install 5.0.0.GA * appc new * appc run * appc ti clean * Remove SDK version from tiapp.xml * appc ti sdk install -d --branch 5_1_X 5.1.0.v20151021132025 * appc use 5.0.3 * appc run *Actual:* The following error is returned:

[ERROR] :  /Users/wluu/Documents/Appcelerator_Studio_Workspace/monkeyPre/DefaultIcon.png cannot be used because it contains an alpha channel
[ERROR] :  Create an image named "DefaultIcon-ios.png" that does not have an alpha channel in the root of your project
[ERROR] :  It is highly recommended that the DefaultIcon.png be 1024x1024
TRACE  | titanium exited with exit code 1
ERROR  | Error: ti run exited with error code 1
    at ChildProcess.<anonymous> (/Users/wluu/.appcelerator/install/5.1.0-38/package/node_modules/appc-cli-titanium/plugins/run.js:92:66)
    at ChildProcess.emit (events.js:110:17)
    at Process.ChildProcess._handle.onexit (child_process.js:1074:12)

Comments

Ingo Muschenetz 2015-10-21

This cannot break the build. We should remove the alpha channel: http://stackoverflow.com/questions/25681869/images-cant-contain-alpha-channels-or-transparencies
Chris Barber 2015-10-23

Found a pure JS library that we can use. It does not properly compute the background color when removing the alpha channel, so I fixed it and submitted a PR: https://github.com/lukeapage/pngjs/pull/32.
Chris Barber 2015-10-23

Master PR: https://github.com/appcelerator/titanium_mobile/pull/7339 5_1_X PR: https://github.com/appcelerator/titanium_mobile/pull/7340
Feon Sua Xin Miao 2015-10-23

PR merged.

Harry Bryant 2015-10-27

Verified as fixed, followed the provided steps and was able to build and launch app successfully:

   INFO]  Analyzing CommonJS modules
   [INFO]  Creating asset catalog
   [INFO]  Creating app icon set
   [WARN]  Skipping Resources/iphone/appicon-60@2x.png because app icons must not have an alpha channel
   [WARN]  Skipping Resources/iphone/appicon-60@3x.png because app icons must not have an alpha channel
   [WARN]  Skipping Resources/iphone/appicon-76.png because app icons must not have an alpha channel
   [WARN]  Skipping Resources/iphone/appicon-76@2x.png because app icons must not have an alpha channel
   [WARN]  Skipping Resources/iphone/appicon-Small-40.png because app icons must not have an alpha channel
   [WARN]  Skipping Resources/iphone/appicon-Small-40@2x.png because app icons must not have an alpha channel
   [WARN]  Skipping Resources/iphone/appicon-Small.png because app icons must not have an alpha channel
   [WARN]  Skipping Resources/iphone/appicon-Small@2x.png because app icons must not have an alpha channel
   [WARN]  The default icon "/Users/harrybryant/Documents/Appcelerator_Studio_Workspace/timob_19707/DefaultIcon.png" contains an alpha channel which is not supported by iOS
   [WARN]  The image will be flattened against a white background
   [WARN]  You may create an image named "DefaultIcon-ios.png" that does not have an alpha channel in the root of your project
   [WARN]  It is highly recommended that the DefaultIcon.png be 1024x1024
   [INFO]  Creating launch image set
   [INFO]  App thinning disabled, skipping asset image sets
   [INFO]  Processing JavaScript files
   [INFO]  Writing app properties
   [INFO]  Writing i18n files
   [INFO]  Processing Titanium symbols
   [INFO]  Removing files
   [INFO]  Invoking xcodebuild
   [INFO]  Finished building the application in 32s 356ms
   [INFO]  Launching iOS Simulator
   -- Start simulator log -------------------------------------------------------
   [INFO]  Application started
   [INFO]  timob_19707/1.0 (5.1.0.c914b0f)

Mac OSX El Capitan 10.11 (15A284) Ti SDK: 5.0.0.GA & 5.1.0.v20151026164636 Appc NPM: 4.2.1-6 Appc CLI: 5.0.0 & 5.0.3 Ti CLI: 5.0.4 Xcode 7.1(7B91b) Node v0.12.7 production *Closing ticket.*

Wilson Luu 2015-10-27

Reopening to correct ticket description.
Ingo Muschenetz 2015-10-28

Removed extraneous old build error log. This issue is meant to address the situation where a 5.0.0-era project fails for 5.0.3+. This is unacceptable as it is a patch-version update. The breaking change of requiring a DefaultIcon.png or complete icon sets from 4.X to 5.X is acceptable as it is a breaking version update.
Wilson Luu 2015-10-28

Closing ticket as per above comments.

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