Error: Unable to transcode assets/xyz.png

I got this error while trying to build a Flex application using Apache ant and Flex 4.5 SDK (Got it even while directly using the MXML command). The strange thing is that, I was able to successfully compile this same project at my office using the very same SDK. I googled and nowhere did I get a satisfactory solution. There were so many threads and links which showed a similar problem:

 Error: unable to resolve 'assets/xyz.png'.

The fact is that, the above error is entirely different from the error I am talking about. The above error is just because the compiler can't resolve the image. A '/' or  '../' before the 'assets' will easily solve the above problem.

But the error:

Error: Unable to transcode assets/xyz.png

is different and frustrating. I happens even though that particular image could be resolved. 

After a few hours of research I finally figured out the problem. The problem was with the underlying JDK.

My Machine is using 64 bit Windows 7, and apparently the JDK  was also a 64 bit. Flex release notes doesn't mention that it supports 64 bit os and now it's clear -It doesn't support. Finally after switching to a 32 bit JDK the project got compiled successfully.

Note- if the above solution doesn't work, you should try downloading the latest 32 bit JDK and try. 

org.springframework.beans.FatalBeanException: Could not copy properties from source to target

I came across this irritating issue(While workign on a Spring based project).

org.springframework.beans.FatalBeanException: Could not copy properties from source to target; nested exception is java.lang.IllegalArgumentException: argument type mismatch

at org.springframework.beans.BeanUtils.copyProperties(BeanUtils.java:599)

at org.springframework.beans.BeanUtils.copyProperties(BeanUtils.java:509)

Google took me to this bug which was already logged with SpringSource:

https://jira.springsource.org/browse/SPR-7693 (unfortunately it's still unfixed)

I made a quick fix/workaround for this.

Download/checkout : org.springframework.beans.BeanUtils.java

Add the below line after: writeMethod.invoke(target, value); (Around line 597) if using the 3.1 source.

if(logger.isDebugEnabled()){

logger.debug(MessageFormat.format("Source Property: {0}, Target Property:   {1}, Write method:{2}, Read Method {3} ", sourcePd.getName(),  targetPd.getName(), writeMethod.getName(), readMethod.getName()));

}

Add the file to your project. Now you can happily debug which property in the class is causing  problem.

Flex Builder 3 on Eclipse Ganymede

While this post might be obsolete, I believe its still useful.

I have had a problem this evening configuring Flex builder 3 with Eclipse. On the final step I was getting this annoying error and for that reason the installation fails:

Missing requirement: Flex Debug Plug-in for Eclipse 3.2 3.0.214193 (com.adobe.flexbuilder.debug.e32 3.0.214193) requires 'bundle org.eclipse.debug.ui [3.2.0,3.3.0)' but it could not be found.

The org.eclipse.debug.ui I have is much more higher version, so Flex shouldn't technically complain about this (3.5.x). I saw a lot of google posts asked by various users, but none had a solution. As I finally made it work, I thought it would be worth useful for somebody else out there.

Solution (Well precisely its not a solution, but a workaround)

• Assuming you have already installed Flex builder.
• Take a backup of : /com.adobe.flexbuilder.update.site/plugins/com.adobe.flexbuilder.debug.e32_3.0.214193.jar
• unjar/open: com.adobe.flexbuilder.debug.e32_3.0.214193.jar
• Edit META-INF/MANIFEST.MF
• Remove the value : bundle-version="[3.2.0,3.3.0)" (which would be the last Require-Bundle section)
• Update the Jar with the changes.
• You might need to replace the modified com.adobe.flexbuilder.debug.e32_3.0.214193.jar into /plugins as well.
• Restart and continue the flex update from eclipse.

This time the installation should pass. :)