Can't debug [INSTALL_FAILED_INVALID_APK] - Sony Xperia P, U, Sola, Go

I have a sola, running the JB port from munjeni.
I'm devlopping an app and I get
Failure [INSTALL_FAILED_INVALID_APK] when trying to debug on the phone. USB debug activated of course.
I see this message as well DeviceMonitor: Adb rejected connection to client '21134': closed
My Nexus 7 when i did that, aksed me to autorize my PC. It seem the sola just deny acces ?
Is that some problem with the JB port ? Common problem with the sola ?? Invalid apk, not really a usefull message.
I'm using intelliJ, and here is the manifest, just in case :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.MyLauncher"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="14"/>
<application android:label="@string/app_name" android:icon="@drawable/ic_launcher">
<activity android:name="LauncherScreen" android:theme="@android:style/Theme.Wallpaper.NoTitleBar.Fullscreen">
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>

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I did some test, put akp on SD, install, start -> all OK.
So apk is valid for sure, and compatible. Had to be some securitty thing bloking it.

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EowynCarter said:
I did some test, put akp on SD, install, start -> all OK.
So apk is valid for sure, and compatible. Had to be some securitty thing bloking it.
Click to expand...
Click to collapse
Did you solve?

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Yes, got myself a nexus 4
Joke aside, look around in the developer setting, at adb and all.
And the max / min sdk version.
You might also want to try adb install name.akp see what happens.
What phone and rom are you using exactly?

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EowynCarter said:
Yes, got myself a nexus 4
Joke aside, look around in the developer setting, at adb and all.
And the max / min sdk version.
You might also want to try adb install name.akp see what happens.
What phone and rom are you using exactly?
Click to expand...
Click to collapse
No way....same extact error with adb install.
My phone is a Zopo zp998 with rom of 28/3/2014
Before the rom update it was working fine!