Building APK fails

[erichegit]

What might the problem be if rebuilding of the .apk fails ??

Patching keys ...
Patching URLs ...
Verifying keys ...
Verifying URLs ...
Backing up original APK ...
Rewriting android manifest /home/pi/python_games/cor_proxy/cr-patcher/com.supercell.clashroyale-1.8.1/AndroidManifest.xml
Building APK ...
ERROR: Failed to build com.supercell.clashroyale-1.8.1 (W: /tmp/brut_util_Jar_1820504874564873883.tmp: 1: /tmp/brut_util_Jar_1820504874564873883.tmp: Syntax error: word unexpected (expecting ")")

and my 2nd question.
Why at all is patching the APK neccessary?
If I modify the Hosts and redirect game.clashroyale to my proxy IP - isn`t this enougth?
So is patching only to change the URL - or is it manditory to get the proxy working?

[erichegit]

Now I was setting up the stuff from scratch on a Debian 8.

No chance to get the patcher run :(
Please can you tell me on which OS you had success with this solution,...

...
Verifying URLs ...
Backing up original APK ...
Rewriting android manifest /home/xxx/Downloads/cr-patcher/com.supercell.clashroyale-1.8.1/AndroidManifest.xml
Building APK ...
Signing APK ...
/usr/bin/jarsigner -sigalg SHA1withRSA -digestalg SHA1 -keystore /home/xxx/Downloads/cr-patcher/client.keystore -storepass teststorepass -keypass testkeypass /home/xxx/Downloads/cr-patcher/com.supercell.clashroyale-1.8.1/build/com.supercell.clashroyale-1.8.1-unsigned.apk testalias
Aligning APK ...
Traceback (most recent call last):
File "patcher.py", line 515, in
result = subprocess.run([config['paths']['zipalign'], '4', UNALIGNED_PATH, PATCHED_PATH], stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
File "/usr/local/lib/python3.5/subprocess.py", line 696, in run
with Popen(*popenargs, **kwargs) as process:
File "/usr/local/lib/python3.5/subprocess.py", line 950, in init
restore_signals, start_new_session)
File "/usr/local/lib/python3.5/subprocess.py", line 1540, in _execute_child
raise child_exception_type(errno_num, err_msg)
OSError: [Errno 8] Exec format error

[erichegit]

can be closed.
Its damn complicated to get all the dependencies running,...
zipalign was not working on my Debian 8 32bit from the "command line tools",...

But a happy end ;)

Just still dont know why patching is neccessary,... Isnt it possible to implement the decryption into the proxy, even if the apk is not patched?

[aperpen]

@erichegit Patching is necessary to make the apk connecting to supercell's servers through the proxy

[ghost]

Because nobody knows Supercell's private key ;)