DDMS on Ubuntu 64bit

The Android SDK comes with a pretty nice suite of tools, one of these is the Dalvik Debug Monitor Service (DDMS). However, it seems like the Android SDK is distributed with some 32bit SWT libraries so if you are on a 64bit Linux, running a 64bit Java default, you might run into this little message:


casper@workstation:/$ dbms
43:27 E/ddms: shutting down due to uncaught exception
43:27 E/ddms: java.lang.UnsatisfiedLinkError: /android-sdk-linux_x86-1.5_r2/tools/lib/libswt-pi-gtk-3236.so: /android-sdk-linux_x86-1.5_r2/tools/lib/libswt-pi-gtk-3236.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1778)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1687)
at java.lang.Runtime.loadLibrary0(Runtime.java:823)
at java.lang.System.loadLibrary(System.java:1030)
at org.eclipse.swt.internal.Library.loadLibrary(Library.java:123)
      ...


This is fairly easy to fix, by first installing the 32bit version of the JRE:


casper@workstation:/$ sudo apt-get install ia32-sun-java6-bin


And then making sure DDMS is using this particular one. There are countless ways to do this (add new environment variables etc.) but I chose to simply modify DDMS itself, which seems like the least invasive way for this purpose. If you go to line 71, it should currently read:

java_cmd="java"


It's obviously relying on the /usr/bin/java symlink which we have in path, which leads to /etc/alternatives/java which again leads to our default 64bit version of the JRE. So change the line to this instead:

java_cmd="/usr/lib/jvm/ia32-java-6-sun/jre/bin/java"


Now DDMS should run so you can monitor, debug and take screenshots of your virtual or physical device.

Comments

Post a Comment

Popular posts from this blog

Oracle SQLDeveloper 4 on Debian/Ubuntu/Mint

Image
Oracle SQLDeveloper is one of those tools you just kind of need around, but with its slew of bugs around so once its setup, you try not to touch it. Occasionally, Oracle releases a new version (or an early preview) with some of the bugs fixed and this appears to be the case with version 4 Early Preview . Unfortunately, these early previews are no longer distributed as general gzip archives to work on any Linux/Mac distro, there's only a RedHat RPM installer for the Linux platform. Thankfully, this is easy to fix using the utility we known and love as Alien. Conversion of RPM to DEB Start by ensuring you have the Alien utility installed. ~$ sudo apt-get install alien Then after downloading the RPM package from Oracle, run it through the alien utility. ~$ sudo alien sqldeveloper-4.0.0.12.84-1.noarch.rpm Warning: Skipping conversion of scripts in package sqldeveloper: postinst Warning: Use the --scripts parameter to include the scripts. sqldeveloper_4.0.0.12.84...
Read more

@SuppressWarnings values

Image
Meta-data and how to associate it has always been a bit of a confusing topic in Java. For instance, the transient modifier is really a kind of marker annotation, as is the @deprecated javadoc tag compilers are also required to process, as is the marker interface Serializable. Then in JDK 1.5, a dedicated annotation facility was added, probably in light of the success of C#'s attributes. One of the first practical uses of annotations appears to be as a way to suppress compiler warnings. @SuppressWarnings This build-in annotation allows the developer to signal a respecting compiler that it should forgo a particular warning. It can be applied in front of a type, a field, a method, a parameter, a constructor as well as a local variable. It is up to the compiler to make sense of whatever you put inside the String, the only value mandated by the JLS is the "unchecked". Compilers as well as IDE's will typically implement each their own set of warning types, the Eclipse IDE d...
Read more

Rejsekort Scanner

Image
Unusual to this blog, the following entry is in danish due to the topic being the national transit ticketing system in Denmark, also known as Rejsekort . Læs også nyere indlæg om emnet i form af   Opfølgning op launch samt Rejsekort Scanner i samarbejde med Rejsekort A/S . Rejsekort Scanner Som det eneste program af sin art, lader Rejsekort Scanner dig aflæse dit Rejsekort direkte og øjeblikkeligt blive informeret omkring check-in status, saldo, rejsehistorik mm. Der er altså hverken behov for data-forbindelse eller kompliceret opsætning! App'en er fungerer med Rejsekort Personligt, Anonymt samt Flex. Man skal bare have en smartphone med NFC der understøtter Mifare Classic smartcards. Rejsekort Scanner er en uofficiel app uden adgang til Rejskort A/S' officielle systemer, og programmet kender derfor heller ikke alle placeringen for begivenheder udover dem der er fundet manuelt. Hvis du ønsker at opdatere denne liste kan du slå "Download placeringer...
Read more