Cr4zyBl4ck
September 18, 2024, 2:53pm
1
Hey,
I am trying to package my Archviz project for android. I didnt made any android packages for a while this is also my first one in 5.4.4. (i think the last one was 5.3 or 5.2)
I got rid of pretty much all errors but now i am stuck at this one
UATHelper: Packaging (Android (ASTC)): Z:\app\src\main\java\com\epicgames\unreal\GameActivity.java:729: error: cannot find symbol
i allready tried this (Android packaging fails with errors in GameActivity.java ) method with the file that someone posted in the comments but this did not work
I am now completely lost how i could get rid of this error. I tried playing around with different SDK versions (even tho i dont really understand that much about it). I now again ended at
SDK 33
since when i go
SDK 34
like the unreal documentaion recommends, Unreal tells me that the compiler doesnt work with API 34 and that i should use API 33 (I at least think that i installed everything correctly in android studio)
So last thing i did was looking into the GameActivity at the named line but i understand absolutely nothing about it and so i am stuck now
Full Log after the Error if needet
UATHelper: Packaging (Android (ASTC)): Z:\app\src\main\java\com\epicgames\unreal\GameActivity.java:729: error: cannot find symbolhttps://help.gradle.org
SolidSk
August 17, 2025, 3:16pm
2
I had the same problem ( I’m using UE 5.6 ):
GameActivity.java:824: error: cannot find symbol
> Task :app:compileReleaseJavaWithJavac
activityContext.runOnUiThread(new Runnable()
^
symbol: method runOnUiThread(<anonymous Runnable>)
location: variable activityContext of type ContextWrapper
To fix:
Change \Engine\Source\Runtime\Advertising\Android\AndroidAdvertising\AndroidAdvertising_APL.xml file
AndroidAdvertising_APL.xml
<?xml version="1.0" encoding="utf-8"?>
<!--AndroidAdvertising optional additions-->
<root xmlns:android="http://schemas.android.com/apk/res/android">
<!-- init section is always evaluated once per architecture -->
<init>
<log text="AndroidAdvertising init"/>
<!-- get packaging with ad support -->
<setBoolFromProperty result="bRequestGAID" ini="Engine" section="/Script/AndroidRuntimeSettings.AndroidRuntimeSettings" property="bRequestGAID" default="false"/>
<setBoolFromProperty result="bSupportAdMob" ini="Engine" section="/Script/AndroidRuntimeSettings.AndroidRuntimeSettings" property="bSupportAdMob" default="true"/>
<setStringFromProperty result="AdMobAppID" ini="Engine" section="/Script/AndroidRuntimeSettings.AndroidRuntimeSettings" property="AdMobAppID" default="[NOT SET]"/>
<setStringFromProperty result="TagForChildDirectedTreatment" ini="Engine" section="/Script/AndroidRuntimeSettings.AndroidRuntimeSettings" property="TagForChildDirectedTreatment" default="TAG_FOR_CHILD_DIRECTED_TREATMENT_UNSPECIFIED"/>
<setStringFromProperty result="TagForUnderAgeOfConsent" ini="Engine" section="/Script/AndroidRuntimeSettings.AndroidRuntimeSettings" property="TagForUnderAgeOfConsent" default="TAG_FOR_UNDER_AGE_OF_CONSENT_UNSPECIFIED"/>
<setStringFromProperty result="MaxAdContentRating" ini="Engine" section="/Script/AndroidRuntimeSettings.AndroidRuntimeSettings" property="MaxAdContentRating" default="MAX_AD_CONTENT_RATING_PG"/>
<if condition="bSupportAdMob">
<true>
<setBoolIsEqual result="bAdMobAppIDNotSet" arg1="$S(AdMobAppID)" arg2="[NOT SET]"/>
<setBoolIsEqual result="bAdMobAppIDEmpty" arg1="$S(AdMobAppID)" arg2=""/>
<setBoolOr result="bAdMobAppIDInvalid" arg1="$B(bAdMobAppIDNotSet)" arg2="$B(bAdMobAppIDEmpty)"/>
<if condition="bAdMobAppIDInvalid">
<true>
<log text="AdMob App ID is not set; disabling AdMob support!"/>
<setBool result="bSupportAdMob" value="false"/>
</true>
</if>
</true>
</if>
<if condition="bSupportAdMob">
<true>
<log text="Including AdMob support. Disable in Android project settings if you do not need to use it."/>
</true>
<false>
<log text="Not including AdMob support. Enable in Android project settings if you need to use it."/>
<setBool result="bRequestGAID" value="false"/>
</false>
</if>
</init>
<buildGradleAdditions>
<if condition="bSupportAdMob">
<true>
<insert>
dependencies {
implementation('com.google.android.gms:play-services-ads:18.1.0')
implementation('com.google.android.gms:play-services-ads-identifier:18.0.1')
}
</insert>
</true>
</if>
</buildGradleAdditions>
<!-- optional updates applied to AndroidManifest.xml -->
<androidManifestUpdates>
<if condition="bSupportAdMob">
<true>
<addPermission android:name="android.permission.INTERNET"/>
<addPermission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<addPermission android:name="com.google.android.gms.permission.AD_ID"/>
<setElement result="AdMobMeta" value="meta-data" />
<addAttribute tag="$AdMobMeta" name="android:name" value="com.google.android.gms.ads.APPLICATION_ID" />
<addAttribute tag="$AdMobMeta" name="android:value" value="$S(AdMobAppID)" />
<addElement tag="application" name="AdMobMeta" />
</true>
</if>
</androidManifestUpdates>
<!-- optional additions to the GameActivity imports in GameActivity.java -->
<gameActivityImportAdditions>
<if condition="bSupportAdMob">
<true>
<insert>
import com.google.android.gms.common.GoogleApiAvailability;
import com.google.android.gms.ads.MobileAds;
import com.google.android.gms.ads.initialization.InitializationStatus;
import com.google.android.gms.ads.initialization.OnInitializationCompleteListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.InterstitialAd;
import com.google.android.gms.ads.RequestConfiguration;
import com.google.android.gms.ads.identifier.AdvertisingIdClient;
import com.google.android.gms.ads.identifier.AdvertisingIdClient.Info;
</insert>
</true>
</if>
</gameActivityImportAdditions>
<!-- optional additions to the GameActivity class in GameActivity.java -->
<gameActivityClassAdditions>
<if condition="bSupportAdMob">
<true>
<insert>
<![CDATA[
/** AdMob support */
private PopupWindow adPopupWindow;
private AdView adView;
private boolean adInit = false;
private LinearLayout adLayout;
private int adGravity = Gravity.TOP;
private InterstitialAd interstitialAd;
private boolean isInterstitialAdLoaded = false;
private boolean isInterstitialAdRequested = false;
private AdRequest interstitialAdRequest;
private String advertisingID = null;
/** true when the application has requested that an ad be displayed */
private boolean adWantsToBeShown = false;
/** true when an ad is available to be displayed */
private boolean adIsAvailable = false;
/** true when an ad request is in flight */
private boolean adIsRequested = false;
// handle ad popup visibility and requests
private void updateAdVisibility(boolean loadIfNeeded)
{
if (!adInit || (adPopupWindow == null))
{
return;
}
// request an ad if we don't have one available or requested, but would like one
if (adWantsToBeShown && !adIsAvailable && !adIsRequested && loadIfNeeded)
{
AdRequest adRequest = new AdRequest.Builder().build(); // add test devices here
_activity.adView.loadAd(adRequest);
adIsRequested = true;
}
if (adIsAvailable && adWantsToBeShown)
{
if (adPopupWindow.isShowing())
{
return;
}
adPopupWindow.showAtLocation(activityLayout, adGravity, 0, 0);
// don't call update on 7.0 to work around this issue: https://code.google.com/p/android/issues/detail?id=221001
if (ANDROID_BUILD_VERSION != 24) {
adPopupWindow.update();
}
}
else
{
if (!adPopupWindow.isShowing())
{
return;
}
adPopupWindow.dismiss();
adPopupWindow.update();
}
}
public void AndroidThunkJava_ShowAdBanner(String AdMobAdUnitID, boolean bShowOnBottonOfScreen)
{
Log.debug("In AndroidThunkJava_ShowAdBanner");
Log.debug("AdID: " + AdMobAdUnitID);
adGravity = bShowOnBottonOfScreen ? Gravity.BOTTOM : Gravity.TOP;
if (adInit)
{
// already created, make it visible
_activity.runOnUiThread(new Runnable()
{
@Override
public void run()
{
if ((adPopupWindow == null) || adPopupWindow.isShowing())
{
return;
}
adWantsToBeShown = true;
updateAdVisibility(true);
}
});
return;
}
// init our AdMob window
adView = new AdView(this);
adView.setAdUnitId(AdMobAdUnitID);
adView.setAdSize(AdSize.BANNER);
if (adView != null)
{
_activity.runOnUiThread(new Runnable()
{
@Override
public void run()
{
adInit = true;
final DisplayMetrics dm = getResources().getDisplayMetrics();
final float scale = dm.density;
adPopupWindow = new PopupWindow(_activity);
adPopupWindow.setWidth((int)(320*scale));
adPopupWindow.setHeight((int)(50*scale));
adPopupWindow.setClippingEnabled(false);
adLayout = new LinearLayout(_activity);
final int padding = (int)(-5*scale);
adLayout.setPadding(padding,padding,padding,padding);
MarginLayoutParams params = new MarginLayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);;
params.setMargins(0,0,0,0);
adLayout.setOrientation(LinearLayout.VERTICAL);
adLayout.addView(adView, params);
adPopupWindow.setContentView(adLayout);
// set up our ad callbacks
_activity.adView.setAdListener(new AdListener()
{
@Override
public void onAdLoaded()
{
adIsAvailable = true;
adIsRequested = false;
updateAdVisibility(true);
}
@Override
public void onAdFailedToLoad(int errorCode)
{
adIsAvailable = false;
adIsRequested = false;
// don't immediately request a new ad on failure, wait until the next show
updateAdVisibility(false);
}
});
adWantsToBeShown = true;
updateAdVisibility(true);
}
});
}
}
public void AndroidThunkJava_HideAdBanner()
{
Log.debug("In AndroidThunkJava_HideAdBanner");
if (!adInit)
{
return;
}
_activity.runOnUiThread(new Runnable()
{
@Override
public void run()
{
adWantsToBeShown = false;
updateAdVisibility(true);
}
});
}
public void AndroidThunkJava_CloseAdBanner()
{
Log.debug("In AndroidThunkJava_CloseAdBanner");
if (!adInit)
{
return;
}
// currently the same as hide. should we do a full teardown?
_activity.runOnUiThread(new Runnable()
{
@Override
public void run()
{
adWantsToBeShown = false;
updateAdVisibility(true);
}
});
}
public void AndroidThunkJava_LoadInterstitialAd(String AdMobAdUnitID)
{
interstitialAdRequest = new AdRequest.Builder().build();
interstitialAd = new InterstitialAd(this);
isInterstitialAdLoaded = false;
isInterstitialAdRequested = true;
interstitialAd.setAdUnitId(AdMobAdUnitID);
_activity.runOnUiThread(new Runnable()
{
@Override
public void run()
{
interstitialAd.loadAd(interstitialAdRequest);
}
});
interstitialAd.setAdListener(new AdListener()
{
@Override
public void onAdFailedToLoad(int errorCode)
{
Log.debug("Interstitial Ad failed to load, errocode: " + errorCode);
isInterstitialAdLoaded = false;
isInterstitialAdRequested = false;
}
@Override
public void onAdLoaded()
{
//track if the ad is loaded since we can only called interstitialAd.isLoaded() from the uiThread
isInterstitialAdLoaded = true;
isInterstitialAdRequested = false;
}
});
}
public boolean AndroidThunkJava_IsInterstitialAdAvailable()
{
return interstitialAd != null && isInterstitialAdLoaded;
}
public boolean AndroidThunkJava_IsInterstitialAdRequested()
{
return interstitialAd != null && isInterstitialAdRequested;
}
public void AndroidThunkJava_ShowInterstitialAd()
{
if(isInterstitialAdLoaded)
{
_activity.runOnUiThread(new Runnable()
{
@Override
public void run()
{
interstitialAd.show();
}
});
}
else
{
Log.debug("Interstitial Ad is not available to show - call LoadInterstitialAd or wait for it to finish loading");
}
}
private GetAdvertisingIdTask AdTask = null;
private class GetAdvertisingIdTask extends android.os.AsyncTask<String, Integer, String>
{
@Override
protected String doInBackground(String... values)
{
AdvertisingIdClient.Info adInfo = null;
try
{
adInfo = AdvertisingIdClient.getAdvertisingIdInfo(GameActivity.Get().getApplicationContext());
if (adInfo.isLimitAdTrackingEnabled())
{
Log.debug("GetAdvertisingId: User opted out of ad tracking");
adInfo = null;
}
Log.debug("GetAdvertisingID: success");
}
catch (Exception e) {
Log.debug("GetAdvertisingId failed: " + e.getMessage());
}
return (adInfo == null) ? "" : adInfo.getId();
}
@Override
protected void onPostExecute(String s)
{
advertisingID = s;
}
}
public String AndroidThunkJava_GetAdvertisingId()
{
try
{
AdTask.get();
}
catch (Exception e)
{
advertisingID = null;
}
return advertisingID;
}
]]>
</insert>
</true>
<false>
<insert>
public void AndroidThunkJava_ShowAdBanner(String AdMobAdUnitID, boolean bShowOnBottonOfScreen)
{
}
public void AndroidThunkJava_HideAdBanner()
{
}
public void AndroidThunkJava_CloseAdBanner()
{
}
public void AndroidThunkJava_LoadInterstitialAd(String AdMobAdUnitID)
{
}
public boolean AndroidThunkJava_IsInterstitialAdAvailable()
{
return true;
}
public boolean AndroidThunkJava_IsInterstitialAdRequested()
{
return false;
}
public void AndroidThunkJava_ShowInterstitialAd()
{
}
public String AndroidThunkJava_GetAdvertisingId()
{
return null;
}
</insert>
</false>
</if>
</gameActivityClassAdditions>
<gameActivityOnCreateAdditions>
<if condition="bSupportAdMob">
<true>
<insert>
RequestConfiguration AdMobConfig = new RequestConfiguration.Builder()
</insert>
<insertValue value=" .setTagForChildDirectedTreatment(RequestConfiguration.$S(TagForChildDirectedTreatment))"/>
<insertNewline/>
<insertValue value=" .setTagForUnderAgeOfConsent(RequestConfiguration.$S(TagForUnderAgeOfConsent))"/>
<insertNewline/>
<insertValue value=" .setMaxAdContentRating(RequestConfiguration.$S(MaxAdContentRating))"/>
<insertNewline/>
<insert>
.build();
MobileAds.setRequestConfiguration(AdMobConfig);
MobileAds.initialize(this, new OnInitializationCompleteListener() {
@Override
public void onInitializationComplete(InitializationStatus initializationStatus) {
}
});
</insert>
</true>
</if>
</gameActivityOnCreateAdditions>
<gameActivityBeforeConfigRulesAppliedAdditions>
<if condition="bRequestGAID">
<true>
<insert>
try
{
if (GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(this) == 0)
{
AdTask = new GetAdvertisingIdTask();
AdTask.execute();
}
}
catch (Exception e)
{
}
</insert>
</true>
</if>
</gameActivityBeforeConfigRulesAppliedAdditions>
</root>
I don’t tell you to copy directly from the source because in my case ( UE 5.6 ) there are additional tags.
But you can compare the source with your file:
https://github.com/EpicGames/UnrealEngine/blob/5.2.1-release/Engine/Source/Runtime/Advertising/Android/AndroidAdvertising/AndroidAdvertising_APL.xml
