I'm trying to explore the tensorflow android demo. I want to adapt the app using android studio.
However when I simply follow the instructions I get compilation errors no matter what I do:
Trying to compile tensorflow using bazel and NDK r12b:
$bazel build -c opt //tensorflow/examples/android:tensorflow_demo
ERROR: /home/myUser/libs/tensorflow_android/WORKSPACE:3:1: //external:io_bazel_rules_closure: no such attribute 'urls' in 'http_archive' rule.
ERROR: /home/myUser/libs/tensorflow_android/WORKSPACE:3:1: //external:io_bazel_rules_closure: missing value for mandatory attribute 'url' in 'http_archive' rule.
ERROR: com.google.devtools.build.lib.packages.BuildFileContainsErrorsException: error loading package '': Encountered error while reading extension file 'closure/defs.bzl': no such package '#io_bazel_rules_closure//closure': error loading package 'external': Could not load //external package.
INFO: Elapsed time: 0.129s
Trying to compile a newer version of bazel following this advice:
$bazel version
Build label: 0.2.3-jdk7 // This is my current version of bazel
via apt-get:
$sudo apt-get upgrade bazel
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
E: Unable to locate package bazel
from source (tried bazel-0.4.2 and bazel-0.5.0):
$./compile.sh
INFO: You can skip this first step by providing a path to the bazel binary as second argument:
INFO: ./compile.sh compile /path/to/bazel
🍃 Building Bazel from scratch
ERROR: JDK version (1.7) is lower than 1.8, please set $JAVA_HOME.
or
$bazel build //src:bazel
ERROR: /home/myUser/libs/bazel/bazel-0.4.2/tools/build_rules/genproto.bzl:45:16: Traceback (most recent call last):
File "/home/myUser/libs/bazel/bazel-0.4.2/tools/build_rules/genproto.bzl", line 42
rule(gensrcjar_impl, attrs = {"src": at..."), <2 more arguments>), "_proto_compiler": attr.label(default = Label("//third_party/p..."), <4 more arguments>), "_jar": attr.label(default = Label("#bazel_tools//t..."), <4 more arguments>), "_jdk": attr.label(default = Label("#bazel_tools//t..."), ...)}, ..."})
File "/home/myUser/libs/bazel/bazel-0.4.2/tools/build_rules/genproto.bzl", line 45, in rule
attr.label(allow_files = proto_filetype, sing...)
allow_files should be a boolean or a filetype object.
ERROR: /home/myUser/libs/bazel/bazel-0.4.2/src/BUILD:130:1: error loading package 'src/main/protobuf': Extension file 'tools/build_rules/genproto.bzl' has errors and referenced by '//src:embedded_tools'.
ERROR: Loading failed; build aborted.
INFO: Elapsed time: 0.251s
switching aroung java-versions to see whether the bazel compiling issues come from there:
$sudo update-alternatives --config java
There are 4 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-8-oracle/jre/bin/java 1074 auto mode
1 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 1071 manual mode
* 2 /usr/lib/jvm/java-7-oracle/jre/bin/java 1072 manual mode
3 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1069 manual mode
4 /usr/lib/jvm/java-8-oracle/jre/bin/java 1074 manual mode
No luck so far :-/. Has anyone successfully compiled tensorflow for android from source?
What version of Tensorflow, NDK, bazel, java are required / compatible with each other? Do I really need bazel? (never worked with it anyway) Can't I just compile the android demo in android-studio like any other app?
I'm using Ubuntu 14.04, Cuda8.0, cudnn_v5.1, Titan X Pascal (not sure if these things matter)
Installing Bazel on Ubuntu can be done without compiling.
Follow all steps of the dedicated documentation: Install Bazel on Ubuntu
Related
as part of a custom Android build chain, I am calling "aapt2 link" in order to link the files generated by a previous call to "aapt2 compile" together. This works fine on Mac, but on Windows it fails with the following error:
failed to open file: The device does not recognize the command.
I'm using the same SDK versions, and the error happens on multiple systems, including my own those of users of our build chain.
I'm calling rapt as follows:
C:\Users\mh\AppData\Local\Android\sdk\build-tools\33.0.1\aapt2.exe
link
-v
-o c:\obj\destination.apk
--manifest c:\Obj\manifest.xml
--java c:\Obj\java
-I C:\obj\android.jar
--proto-format
--min-sdk-version 26
--target-sdk-version 26
#c:\Obj\Aapt2LinkFiles.txt
(paths shortened for clarity here). All files listed in c:\Obj\Aapt2LinkFiles.txt exist, and aapt prints them all out, before emitting the error.
Does anyone have an idea what I could be missing?
As a side question: Is there a way to see, in Android Studio, how and with what parameters aapt2 is called as part of the normal automated build process? Because builds in Android Studio work fine (but I seem to not be able tom find any lace where there is a full build log, in the way that other IDEs such as Xcode or Visual Studio provide a textual overview of what actual tools get executed and with what parameters, as you build.
Thanx!
Update full command line for repro:
C:> C:\Users\mh\AppData\Local\Android\sdk\build-tools\33.0.1\aapt2.exe link -v -o c:\Obj\ForAAB.apk --manifest c:\Obj\m.xml --java c:\Obj\java -I C:\obj\a.jar --proto-format --min-sdk-version 26 --target-sdk-version 26 #c:\Obj\files.txt
Output
note: including C:\obj\a.jar.
note: linking package 'org.me.testapt2' using package ID 7f.
c:\Obj\res-aapt2\drawable-hdpi_icon.png.flat
c:\Obj\res-aapt2\drawable-ldpi_icon.png.flat
c:\Obj\res-aapt2\drawable-mdpi_icon.png.flat
c:\Obj\res-aapt2\drawable-xhdpi_icon.png.flat
c:\Obj\res-aapt2\drawable_icon.png.flat
c:\Obj\res-aapt2\layout_main.xml.flat: error: failed to open file: The device does not recognize the command. (22).
error: failed parsing input.
files can be found at https://www.dropbox.com/s/zuuopmhyzkd271u/Obj.zip?dl=0, unzip to C:\Obj
I've been trying to employ Kawa Scheme for developing Android project. I've found two repositories on GitHub: one called 'android-kawa', and another called 'KawaDroid'. They're both a bit dated (last updates were around 2012). In the case of 'android-kawa' I was able to reach the author, but he said he did't remeber enough to help me.
In the 'android-kawa' repo there's a bunch of scripts for setting up and working with the project. One of the scripts downloads the Kawa 1.13 tarball, applies some patches and then attempts to build it.
However, the build isn't supported in Termux, bevaise the config.guess script doesn't recognize the system. This issue can be easily resolved by downloading the latest versions of config.guess and config.sub.
Another problem is the format of the JVM bytecode. When I use the latest Java compiler, the generated bytecode contains (I believe) instructions for JVM8+, which aren't supported by the dx command. This isn't a problem if I run Java inside of Termux, because it installs the regular JVM, but if I want to include the Kawa jar in my APK (which is something that I want), then it becomes an obstacle.
This, again, can be resolved by forcing the Java version to 7 in javac. (But then, the compiler complsins that Java 1.7 is deprecated. I guess this is why the buildAPKs project uses ecj instead of javac)
Also, when I ./configure Kawa, I can pass it the path to the android.jar file (./configure --with-android=...). I have two android.jar files on my system:
~ $ locate android.jar
/data/data/com.termux/files/usr/share/aapt/android.jar
/data/data/com.termux/files/usr/share/java/android.jar
I don't know where they came from or how they differ between one another, but I've been prefering the second one.
So, when I have the kawa.jar available - and when I try to compile it with the command
~/android-kawa $ java -cp $(dirname $(locate android.jar |tail -n 1)) -jar kawa/kawa-1.13.jar -C KawaHello/src/kawa/android/hello.scm
I get the following error:
internal error while compiling KawaHello/src/kawa/android/hello.scm
java.lang.NoClassDefFoundError: android/view/View
at gnu.kawa.android.defs.<clinit>(defs.scm)
at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method)
at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1155)
at java.base/jdk.internal.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:42)
at java.base/jdk.internal.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:185)
at java.base/java.lang.reflect.Field.acquireFieldAccessor(Field.java:1132)
at java.base/java.lang.reflect.Field.getFieldAccessor(Field.java:1113)
at java.base/java.lang.reflect.Field.get(Field.java:425)
at gnu.expr.ModuleInfo.setupModuleExp(ModuleInfo.java:195)
at kawa.standard.require.importDefinitions(require.java:308)
at kawa.standard.require.scanForDefinitions(require.java:219)
at kawa.lang.Syntax.scanForm(Syntax.java:65)
at kawa.lang.Translator.scanForm(Translator.java:1120)
at gnu.kawa.lispexpr.LispLanguage.parse(LispLanguage.java:64)
at gnu.expr.Compilation.process(Compilation.java:1908)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:305)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:290)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:290)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:290)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:290)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:290)
at kawa.repl.compileFiles(repl.java:823)
at kawa.repl.processArgs(repl.java:444)
at kawa.repl.main(repl.java:869)
Caused by: java.lang.ClassNotFoundException: android.view.View
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520) ... 24 more
I have obviously tried it without the -cp argument (with the same effect). The android/view/View.class entry is present in the list returned by jar -tf android.jar.
How can I further investigate in the root cause of the problem, and most importantly, how can I solve it?
It turned out that I have invoked Java incorrectly, and that it didn't see the android.jar file. It helped to invoke the compiler in the following way:
~/android-kawa $ java -cp $(locate android.jar |tail -n 1):kawa/kawa-1.13.jar kawa.repl -C KawaHello/src/kawa/android/hello.scm
(the difference is that I only have one -cp argument with jar files separated by :, and that I explicitly give the kawa.repl class name)
Hi everybody I'm in a dead end!
Develop a PCL application using VisualStudio 2015, Xamarin and MvvmCross.
The Android app exceeds the 65K limit. I need to use Multidex!
For its implementation I have undertaken these guidelines:
Enabled checkbox for MultiDex
Extended MultiDexApplication class
General considerations:
Debug mode
MinSdk: 21
TargetSdk: 25
BuildTools: 23.0.3
Jdk 1.8.0_121
Xamarin.Android 7.3
Results:
"java.exe" exited with code 2. C:\Program Files (x86)\MSBuild\Xamarin \Android\Xamarin.Android.Common.targets 1965
<!-- Compile java code to dalvik -->
<CompileToDalvik
DxJarPath="$(DxJarPath)"
JavaToolPath="$(JavaToolPath)"
JavaMaximumHeapSize="$(JavaMaximumHeapSize)"
JavaOptions="$(JavaOptions)"
ClassesOutputDirectory="$(IntermediateOutputPath)android\bin\classes"
ToolPath="$(DxToolPath)"
ToolExe="$(DxToolExe)"
UseDx="$(UseDx)"
MultiDexEnabled="$(AndroidEnableMultiDex)"
MultiDexMainDexListFile="$(_AndroidMainDexListFile)"
JavaLibrariesToCompile="#(_JavaLibrariesToCompileForAppDx)"
OptionalObfuscatedJarFile="$(IntermediateOutputPath)proguard\__proguard_output__.jar"
/>
The error occurs during the compilation process.
I have consulted these sources:
"https://developer.android.com/studio/build/multidex.html"
"http://www.jon-douglas.com/2016/09/05/xamarin-android-multidex/"
"http://www.jon-douglas.com/2016/09/23/xamarin-android-multidex-keep/"
"https://przemekraciborski.eu/"
"https://forums.xamarin.com/discussion/64234/multi-dex-app-with-a-custom-application-class-that-runs-on-pre-lollipop"
"http://frogermcs.github.io/MultiDex-solution-for-64k-limit-in-Dalvik/"
I also have the ClassyShark.jar tool, but no dex or apk file is generated to explore it. Only the mono.android.jar file exists
Please I need help.
Thank you very much.
Responding to answer 1 and Luke Pothier's commentary are the results:
Setting output verbosity = Diagnostic
Case 1:
Using Android Sdk Location: C:\Program Files (x86)\Android\android-sdk installed with Visual Studio 2015.
4>_CompileToDalvikWithDx:
4> Creating directory "obj\Debug\proguard".
4> C:\Program Files\Java\jdk1.8.0_121\\bin\java.exe -Xmx1G -jar "C:\Program Files (x86)\Android\android-sdk\build-tools\25.0.3\\lib\dx.jar" --no-strict --dex --output= ...
4> trouble writing output: Too many field references: 68102; max is 65536.
4> You may try using --multi-dex option.
4> References by package:
(list of references by packages)
4>C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(1965,3): error MSB6006: "java.exe" exited with code 2.
Case 2:
Using Android Sdk Location: c:\android\sdk with last proguard version 5.3.3 installed with Android Studio.
4>_CompileToDalvikWithDx:
4> Creating directory "obj\Debug\proguard".
4> C:\Program Files\Java\jdk1.8.0_121\\bin\java.exe -Xmx1G -jar C:\Android\sdk\build-tools\25.0.0\\lib\dx.jar --no-strict --dex --output=
4> trouble writing output: Too many field references: 68102; max is 65536.
4> You may try using --multi-dex option.
4> References by package:
(list of references by packages)
4>C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(1965,3): error MSB6006: "java.exe" exited with code 2.
This is likely to be caused by an issue between Xamarin and ProGuard, the fix to which is detailed here. Essentially, you need to replace the proguard.jar file that is in your Android SDK directory with the latest one from SourceForge (v5.3.3 currently).
EDIT: Per the error messages in your edits, the --multi-dex option isn't being passed during compilation. I would check your Android .csproj to make sure that the <AndroidEnableMultiDex> option is set to True for all build configurations. If that doesn't help, you may need to upload a reproducible sample somewhere.
EDIT 2: Per the comments, your Android SDK location needs to be somewhere where the path does not contain spaces. Program Files is no good. Personally I put mine in C:\Android\android-sdk.
After adjusting the path to the android sdk, removing the spaces and setting in the project file for the Droid platform the property AndroidEnableMultiDex in all configurations (appeared AndroidEnableMultipleDex) in true, I was able to compile without errors. Also, I have been able to check the contents of the generated dex files and both have references to Mvvmcross.
When I execute the application, it shows the splash view (ok!!!), but, an exception occurs when processing the view (activity) that has a binded viewmodel. Now, the viewmodel has null value. (Until the moment of having to activate the multidex, the application executed without any incidence)
My challenge now is to know if all the reference to Mvvmcross should be in the main dex, or is it due to another problem that I have overlooked?
Thanks in advance for his time to #LukePothier.
My self response:
After compiling and generate dex classes:
use dex2jar & jd-gui tools following Jon Douglas' hints in http://www.jon-douglas.com/2016/09/23/xamarin-android-multidex-keep/.
be very patient and persevere.
remove innesesary code and plugin if you can do it yourself.
I already have the application running !!!
I'm trying to get the tensorflow Android example running but I keep running into this issue:
ERROR: /home/administrator/TensorFlow_Git/tensorflow/examples/android/BUILD:41:1: output 'tensorflow/examples/android/libpthread.so' was not created.
ERROR: /home/administrator/TensorFlow_Git/tensorflow/examples/android/BUILD:41:1: not all outputs were created.
Version Details:
OS: Ubuntu 14.04LTS;
bazel version 0.2.1;
tensorflow version: tensorflow-0.7.1-cp34-none-linux_x86_64.whl
Excerpt of WORKSPACE file:
android_sdk_repository(
name = "androidsdk",
api_level = 23,
build_tools_version = "23.0.3", #also wget'ed 23.0.1, same result
path = "/home/administrator/Android/Sdk",)
android_ndk_repository(
name="androidndk",
path="/home/administrator/Downloads/android-ndk-r10e", #also tried android-ndk-r11c but README not found error
api_level=21)
I can successfully compile and deploy android apps via android studio.
If I comment out the part in the BUILD file and copy the libpthread.so file from the internet to the target location the error changes to the following:
ERROR:
/home/administrator/TensorFlow/tensorflow/tensorflow/examples/android/BUILD:12:1:
output 'tensorflow/examples/android/libtensorflow_demo.so' was not
created.
ERROR: /home/administrator/TensorFlow/tensorflow/tensorflow/examples/android/BUILD:12:1:
not all outputs were created.
Not sure if this is a bug but I guess not.
I have no idea what and where something went wrong but there were broken link files pointing to a non existing directory with libtensorflow_demo.so.
The solution for me was to start all over with a fresh VM with enough diskspace (20GB is clearly not enough), enough memory (default is pretty low) and all cores assigned (default is 1) with the current Ubuntu 16.04 LTS and Android Studio. Also tensorflow v8.0 which came out meanwhile seems to be a bit less troublesome.
I had an issue with the VM where I had 0byte left and had blackscreen before login. I fixed that but it was during an installation and maybe it was the installation of bazel that messed up something. I can't tell.
Can't build streamer tutorial_3 for android on mac
I,ve got all environment variables needed.
My eclipse can't to resolve some symbols, but to some of them i can get by pushing F3. It's very strange for me.
Here is the command line output:
23:04:06 **** Build of configuration Default for project Tutorial3 ****
/Users/antonivanuskin/android-develop/android-ndk-r10/ndk-build all
GStreamer : [GEN] => gst-build-armeabi/gstreamer_android.c
GStreamer : [COMPILE] => gst-build-armeabi/gstreamer_android.c
GStreamer : [LINK] => gst-build-armeabi/libgstreamer_android.so
lto1: fatal error: bytecode stream generated with LTO version 2.2 instead of the expected 3.0
compilation terminated.
lto-wrapper: /Users/antonivanuskin/android-develop/android-ndk-r10/toolchains/arm- linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc returned 1 exit status
/Users/antonivanuskin/android-develop/android-ndk-r10/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.9/../../../../arm-linux-androideabi/bin/ld.gold: fatal error: lto-wrapper failed
collect2: error: ld returned 1 exit status
make: *** [buildsharedlibrary_armeabi] Error 1
23:04:10 Build Finished (took 3s.740ms)*
I use ndk-10r and gst-1.4.0.
I know that there is no interfaces/xoverlay in new streamer.
EDIT
I've built ok, but steel got underlines of many glib-types and GST-macross. Here is a screenshot:
what is interesting that i have no underlined headers, for example: i've include pthread.h but have got underlined pthread_t and phtread_key_t....
i think that i have not install some general libraries on my mac, something like libc or what ever...may it couse this problem? The problem is that i can't run my app from eclipse. and for more: i use DS-5 CE IDE
This is most likely because we build the android 1.4.x cerbero packages with the r9d NDK.
You might want to use the r9d NDK until we provide binaries built with a more recent NDK (started some builds to see if everything goes through fine).