After setting the app name and url,

What's your app name? [myapp]

Project_Name
What's your app url?
http://localhost/project

What's your java package name? [com.myapp.mobile]

com.jorge.mobile

Error: Target id is not valid. Use 'android list targets' to get the target ids.
Traceback (most recent call last):
File "/usr/local/bin/android-webview", line 8, in
load_entry_point('android-webview==0.1.3', 'console_scripts', 'android-webview')()
File "/Library/Python/2.7/site-packages/awebview/android_webview.py", line 92, in main
replace_templates()
File "/Library/Python/2.7/site-packages/awebview/android_webview.py", line 45, in replace_templates
new_main_activity = open('{0}/src/{1}/MainActivity.java'.format(PARAMS['app_name'], PARAMS['package_dir']), 'w')
IOError: [Errno 2] No such file or directory: 'Project_Name/src/com/jorge/mobile/MainActivity.java'

I have copied the template/* files into ../Project_Name to avoid previous errors but then I'm stuck here.

When I try to $ android list targets
Available Android targets:

Is empty.

Thanks.
Jorge

what do You mean by "Android SDK installed and available on path."?

[mergemanifest] Merging AndroidManifest files into one.
[mergemanifest] Manifest merger disabled. Using project manifest only.
[echo] Handling aidl files...
[aidl] No AIDL files to compile.
[echo] ----------
[echo] Handling RenderScript files...
[echo] ----------
[echo] Handling Resources...
[aapt] Generating resource IDs...
[aapt] /Users/project/bin/AndroidManifest.xml:7: error: No resource identifier found for attribute 'targetSdkVersion' in package 'android'
[aapt] /Users/project/bin/AndroidManifest.xml:13: error: No resource identifier found for attribute 'allowBackup' in package 'android'
[aapt] /Users/project/bin/AndroidManifest.xml:13: error: Error: No resource found that matches the given name (at 'icon' with value '@drawable/ic_launcher').
[aapt] /Users/project/bin/AndroidManifest.xml:18: error: Error: String types not allowed (at 'configChanges' with value 'orientation|screenSize').

BUILD FAILED
/usr/local/Cellar/android-sdk/23.0.2/tools/ant/build.xml:653: The following error occurred while executing this line:
/usr/local/Cellar/android-sdk/23.0.2/tools/ant/build.xml:698: null returned: 1