Error while compiling AIDL

Question

I'm trying to compile .aidl and generate .java but:

Error:Execution failed for task ':library:compileReleaseAidl'.
> java.lang.RuntimeException: com.android.ide.common.process.ProcessException:
Error while executing 'C:\Users\Michele\AppData\Local\Android\sdk\build-tools\25.0.0\aidl.exe'
with arguments {-pC:\Users\Michele\AppData\Local\Android\sdk\platforms\android-25\framework.aidl
-oC:\Users\Michele\workspace\AndroidLib\library\build\generated\source\aidl\release
-IC:\Users\Michele\workspace\AndroidLib\library\src
-IC:\Users\Michele\workspace\AndroidLib\library\src\release\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\appcompat-v7\25.0.1\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\support-v4\25.0.1\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\support-fragment\25.0.1\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\support-media-compat\25.0.1\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\support-core-ui\25.0.1\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\support-core-utils\25.0.1\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\animated-vector-drawable\25.0.1\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\support-vector-drawable\25.0.1\aidl
-IC:\Users\Michele\workspace\AndroidLib\library\build\intermediates\exploded-aar\com.android.support\support-compat\25.0.1\aidl
-dC:\Users\Michele\AppData\Local\Temp\aidl3070615992051288022.d
C:\Users\Michele\workspace\AndroidLib\library\src\IRemoteShortcutService.aidl}

I use this build.gradle

apply plugin: 'com.android.library'
apply plugin: 'com.github.dcendents.android-maven'

group='com.github.michelelacorte'

android {
    compileSdkVersion 25
    buildToolsVersion '25.0.0'

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 25
        versionCode 2
        versionName "0.2.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    sourceSets {
        main {
            aidl.srcDirs = ['src/main/aidl']
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.0.1'
    testCompile 'junit:junit:4.12'
    compile 'com.google.code.gson:gson:2.8.0'
}

And this root build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'
        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

I've read about issue with build tools, but I doesn't found anything about API 25

EDIT:

I've launched aidl.exe with params and it return:

aidl.exe E  2236 13884 aidl_language.cpp:224] Error while opening file for parsing: 'C:\Users\Michele\workspace\AndroidLib\library\src\IRemoteShortcutService.aidl'

EDIT 2:

Shortcut.aidl

// Shortcut.aidl
package it.michelelacorte.androidshortcuts;

parcelable Shortcuts;

IRemoteShortcutService.aidl

// IRemoteShortcutService.aidl
package it.michelelacorte.androidshortcuts;

interface IRemoteShortcutService {

    void addShortcuts(int shortcutsImage, String shortcutsText);

    Shortcuts getShortcuts();
}

This .aidl are located in src/main/aidl folder

Answer 1

Did you try to add verbose option to gradle or execute the same aidl.exe manually with the same parameters?

Probably there is an explanatory error code or message from aidl.exe that gradle does not show.

According to the error aidl can not open the file. Check if file exists there and the content is valid.

Try to change to the new default layout:

Put aidl files in /src/main/aidl

build.gradle:

...
    sourceSets {
        main {
            aidl.srcDirs = ['src/main/aidl']
        }
    }

(though, in general, if file is in /src/main/aidl it is supposed to work without aidl.srcDirs entry)

Don't forget that aidl files should be under package folders like java. For example, if the package is it.michelelacorte.testaidl, the aidl file should be under src/main/aidl/it/michelelacorte/testaidl.

In recent version of Android Studio, the New/AIDL/AIDL File project menu should already place the file under correct folder, if project package is set correctly.