cocos2d-x 3.0 complie android -- tell "Couldn't find the gcc toolchain.".. what's happen? please help

cocos2d-x C++
#21

@zhangxm wrote:

You can run the command

ls -a ~

Then you will find it if exists.

Hix, can you help me solve this problem???

“Couldn’t find GCC toolchan”.

Do you use Teamview??. I’ll show you my problem

#22

I don’t use Teamview.
Could you describe what you did step by step?
And describe what’s your problem.

#23

Because
ndk-r8e -> use gcc4.7
ndk-r9 -> use gcc4.8

Check:

ndk_root/toolchains/arm-linux-androideabi-4.8 or
ndk_root/toolchains/arm-linux-androideabi-4.7

existing

#24

ndk_root better no space. hope help you guys.

#25

same problem , it’s really strange that ,all ok while run in Terminal with command line
$ ./build_native.sh
but, there err-msg from Eclipse is different, and I find out that there ENV-VALUES are different with shell imp from .bash_profile
and ,so I fix it by add NDK_ROOT in Eclipse
FILE->Properties->C/C++ Build->Environment
fix_ndk_root

#26

def select_toolchain_version():
‘’‘Because ndk-r8e uses gcc4.6 as default. gcc4.6 doesn’t support c++11. So we should select gcc4.7 when
using ndk-r8e. But gcc4.7 is removed in ndk-r9, so we should determine whether gcc4.7 exist.
Conclution:
ndk-r8e -> use gcc4.7
ndk-r9 -> use gcc4.8
‘’’

ndk_root = check_environment_variables()
if os.path.isdir(os.path.join(ndk_root,"toolchains/arm-linux-androideabi-4.8")):
    os.environ['NDK_TOOLCHAIN_VERSION'] = '4.8'
    print "The Selected NDK toolchain version was 4.8 !"
elif os.path.isdir(os.path.join(ndk_root,"toolchains/arm-linux-androideabi-4.7")):
    os.environ['NDK_TOOLCHAIN_VERSION'] = '4.7'
    print "The Selected NDK toolchain version was 4.7 !"
else:
    print "Couldn't find the gcc toolchain."

so …check your toolchain version in NDK_HOME

#27

I have the same “Couldn’t find the gcc toolchain.” problem with ndk-r10 when NDK_ROOT is set to absolute path of android-ndk-r10 folder. I use cocos2d-x 3.1 and also adt-bundle-mac-x86_64-20140702.

#28

I got the problem same as yours. Finally, I find out the solution for it. I modified build_native.py a bit.
I add some lines in this file:

if os.path.isdir(os.path.join(ndk_root,“toolchains/arm-linux-androideabi-4.8”)):
os.environ[‘NDK_TOOLCHAIN_VERSION’] = ‘4.8’
print “The Selected NDK toolchain version was 4.8 !”
elif os.path.isdir(os.path.join(ndk_root,“toolchains/arm-linux-androideabi-4.7”)):
os.environ[‘NDK_TOOLCHAIN_VERSION’] = ‘4.7’
print “The Selected NDK toolchain version was 4.7 !”
elif os.path.isdir(os.path.join(ndk_root,“toolchains/arm-linux-androideabi-4.9”)):
os.environ[‘NDK_TOOLCHAIN_VERSION’] = ‘4.9’
print "The Selected NDK toolchain version was 4.9 !"

else:

    print "Couldn't find the gcc toolchain."
    exit(1)

I hope it can help. I guess r10 should be updated in this file. But you should use ndk r9c for safety

#29

Same here, I’m using MacOS, what I did is I downloaded the NDK r9d and all problem gone :smile:

#30

I can not run the “ls -a ~” command line hix

http://giaysi.vn

#31

I don’t know the system you used.
I think ls command is common on linux/unix world.
May be you can find similar command in your system.

#32

Did anybody ever solved this issue because i am having the same problem and can’t find a clue about it. I am working on physical Mac OX Yosemite + cocos2d-x v3.3 + NDK r9c

#33

@ibnetariq
did you try adding the NDK_ROOT to the eclipse environment variables? Also, I suggest using the NDK r10d since im using that with cocos2dx 3.3 and it works fine.

#34

@TheDevil thnx a lot for quick reply.
Yes i did added NDK_ROOT, but in terminal , where I am trying to build it using ./build_native.py.
And another thing that on cocos2d-x website it recomended to use ndk r9 rather than r10

#35

After reading the comments I printed the path of toolchain , which turns out to be correct. but os.path.isdir(path) returns false regardless of the fact that dir exists at that path

#36

so your building from the terminal…just checking to make sure your environment variables are set( i dont mean eclipse, but for your terminal to use). also did u try building using the cocos command?

#37

No, I haven’t but i’ll give it a try and let you people know the result.

#38

I had a similar problem on my Mac. NDK was one issue and I was running out of swap space on my hard drive. Also try removing .metadata in your Eclipse workspace.

Good luck.

Chris

#39

I am getting the same error in 3.3 also. Will remove metadata file and try again

#40

I have the same problem in cocos2d-x-3.4 and the NDK version is android-ndk-r9d ,i’m using windows and installed cygwin.
i find the the problem caused by python statement
if os.path.isdir(os.path.join(ndk_root,“toolchains/arm-linux-androideabi-4.9”)):
os.environ[‘NDK_TOOLCHAIN_VERSION’] = ‘4.9’
print “The Selected NDK toolchain version was 4.9 !”
elif os.path.isdir(os.path.join(ndk_root,“toolchains/arm-linux-androideabi-4.8”)):
os.environ[‘NDK_TOOLCHAIN_VERSION’] = ‘4.8’
print “The Selected NDK toolchain version was 4.8 !”
os.path.isdir(os.path.join(ndk_root,“XXX”)): always return false, and ndk_root/toolchains/arm-linux-androideabi-4.8 exists .
Help!