opengapps/aosp_build

Black screen in google signin prompt (LineageOS 15.1 build)

sreehax opened this issue · 10 comments

sreehax commented

I tried to build LineageOS 15.1 with gapps bundled in so that I can do delta updates (system partition must not be modified) with my own update server. The rom is built correctly, and the phone boots into the google setup wizard. I can connect to wifi/data and when i need to sign into a google account, the google sign in prompt is not loaded, and there is a black screen. I can reboot or power off, and the navbar and statusbar are still visible. Rebooting does not fix the issue.

acr92 commented
sreehax commented

@Blystad I can't get a logcat since USB Debugging cannot be enabled yet.

alviteri commented

Check pstore or cache/recovery/last_log
Use TWRP for it

sreehax commented

@alviteri It's probably too late for this, for now I gave up and installed the opengapps stock zip (modified the system partition). I can check later by flashing my broken build again.

alviteri commented

It should be the best since without log we can't help ...

sreehax commented

@alviteri yeah I will post a logcat later, I'm in PST time zone

acr92 commented
sreehax commented

actually this was because permissions weren't set or something like that. I ended up building a qemu-arm chroot to run update-binary from the flashable zip and install the gapps to $OUT/system, then rebuild target-files, then sign target-files. Works fine for me

jamuir commented

Too bad there weren't any logs provided here. I am seeing something similar in a new oreo (8.1) build.

It is happening because a webview implementation cannot be located. I am using a pre-built vendor image and it is possible that may be breaking webview somehow.

10-09 19:49:31.302 I/SystemServer( 1394): u0 : WebViewFactoryPreparation
10-09 19:49:31.303 E/WebViewUpdater( 1394): u0 : error preparing webview provider from system server
10-09 19:49:31.303 E/WebViewUpdater( 1394): com.android.server.webkit.WebViewUpdater$WebViewPackageMissingException: Could not find a loadable WebView package
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.webkit.WebViewUpdater.findPreferredWebViewPackage(WebViewUpdater.java:320)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.webkit.WebViewUpdater.prepareWebViewInSystemServer(WebViewUpdater.java:142)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.webkit.WebViewUpdateServiceImpl.prepareWebViewInSystemServer(WebViewUpdateServiceImpl.java:95)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.webkit.WebViewUpdateService.prepareWebViewInSystemServer(WebViewUpdateService.java:127)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.SystemServer.lambda$-com_android_server_SystemServer_77314(SystemServer.java:1716)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.-$Lambda$T7cKu_OKm_Fk2kBNthmo_uUJTSo$2.$m$0(Unknown Source:4)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.-$Lambda$T7cKu_OKm_Fk2kBNthmo_uUJTSo$2.run(Unknown Source:0)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.SystemServerInitThreadPool.lambda$-com_android_server_SystemServerInitThreadPool_2249(SystemServerInitThreadPool.java:64)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.-$Lambda$Ganck_s9Kl5o2K6eVDoQTKLc-6g.$m$2(Unknown Source:8)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.server.-$Lambda$Ganck_s9Kl5o2K6eVDoQTKLc-6g.run(Unknown Source:19)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
10-09 19:49:31.303 E/WebViewUpdater( 1394):     at com.android.internal.util.ConcurrentUtils$1$1.run(ConcurrentUtils.java:59)
0100Light commented

This is caused by an error of Android System Webview.
I solved this problem by downloading a newer version of Android System Webview apk, and change the webview in settings to the new version (should originally be "chrome version xxx").

After logging into Google account, you should update the installed GApps (especially Chrome) as well.

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