View Full Version : Invalid SKAdvice when navigating

13.02.2017, 15:46
I am updating Skobbler to version 2.5.2 to fix libpng Google Play Warning (I also tried to update to version 3+), but the navigation stops working properly after the update.

After onRouteCalculationCompleted I check the advices list using SKRouteManager.getInstance().getAdviceList() and receive valid advices.

SKRouteAdvice [adviceID=0, timeToDestination=261, distanceToDestination=1234, timeToAdvice=0, distanceToAdvice=0, streetName=Rua Barao do Abiaí, visualAdviceFile=/data/user/0/myapp/files/SKMaps//Advisor/Visual/104962/1.png, advicePosition=[-35.886744260787964,-7.215477737837522], adviceInstruction=Now turn left then turn right , audioFilePlaylist=[now, turn_left, then_open, turn_right], currentStreetType=RESIDENTIAL, currentStreetFCClass=FC3, streetDirection=DIRECTION_LEFT]

However, while navigating, the advice is a invalid one, like this

onUpdateNavigationState SKNavigationState [adviceID=-1, currentSpeed=5.304781188371101E-58, currentSpeedLimit=0.0, countryCode=, lastAdvice=false, showSignPost=false, currentAdviceCurrentStreetName=, currentAdviceNextStreetName=, currentAdviceCurrentOsmStreetType=UNDEFINED, currentAdviceNextOsmStreetType=UNDEFINED, currentAdviceDistanceToAdvice=-738480304, currentAdviceTimeToDestination=-738962832, currentAdviceDistanceToDestination=-738480656, currentAdviceVisualAdviceFile=, currentAdviceAudioAdvices=[None], currentAdviceExitNumber=, nextAdviceCurrentStreetName=, nextAdviceNextStreetName=, nextAdviceDistanceToAdvice=-738854288, nextAdviceVisualAdviceFile=, nextAdviceCurrentOsmStreetType=UNDEFINED, nextAdviceNextOsmStreetType=UNDEFINED, distanceToDestination=0.0, firstCrossingDescriptor=SKCrossingDescriptor [crossingType=0, routeAngle=0.0, turnToRight=false, directionUK=false, allowedRoutesAngles=null, forbiddenRoutesAngles=null], secondCrossingDescriptor=SKCrossingDescriptor [crossingType=0, routeAngle=0.0, turnToRight=false, directionUK=false, allowedRoutesAngles=null, forbiddenRoutesAngles=null], adviceInstruction=, viaPointsInfo=null, isLastVisualAdvice=false, currentStreetDirection=DIRECTION_INVALID, nextStreetDirection=DIRECTION_INVALID]

To check if the advice list remains valid I added a log code before starting the navigation and the app crashes with the following error:

02-10 12:06:43.769 3236-3236/myapp A/libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x0 in tid 3236 (urance.myapp)
02-10 12:06:43.994 4166-4166/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
02-10 12:06:43.995 4166-4166/? A/DEBUG: Build fingerprint: 'google/bullhead/bullhead:7.1.1/N4F26O/3582057:user/release-keys'
02-10 12:06:43.995 4166-4166/? A/DEBUG: Revision: 'rev_1.0'
02-10 12:06:43.995 4166-4166/? A/DEBUG: ABI: 'arm'
02-10 12:06:43.995 4166-4166/? A/DEBUG: pid: 3236, tid: 3236, name: urance.myapp >>> myapp <<<
02-10 12:06:43.995 4166-4166/? A/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
02-10 12:06:43.995 4166-4166/? A/DEBUG: r0 00000001 r1 d71b69dd r2 00000002 r3 f1304a40
02-10 12:06:43.995 4166-4166/? A/DEBUG: r4 f1323200 r5 eb614ef0 r6 00000000 r7 00000002
02-10 12:06:43.995 4166-4166/? A/DEBUG: r8 00000001 r9 ffcd6bb4 sl c39fcd80 fp c4b7b000
02-10 12:06:43.995 4166-4166/? A/DEBUG: ip 00000000 sp ffcd6a38 lr d72b8347 pc d72b834c cpsr 000f0030
02-10 12:06:43.998 4166-4166/? A/DEBUG: backtrace:
02-10 12:06:44.000 4166-4166/? A/DEBUG: #00 pc 0033734c /data/app/myapp-2/lib/arm/libngnative.so (_ZN17SkAdviceGenerator14fillAdviceInfoEiiR16NGAdv iceTypeEnumR12SkAdviceInfo+671)
02-10 12:06:44.000 4166-4166/? A/DEBUG: #01 pc 003367ff /data/app/myapp-2/lib/arm/libngnative.so (_ZN17SkAdviceGenerator17generateNewAdviceEibbPK6C Route+550)
02-10 12:06:44.000 4166-4166/? A/DEBUG: #02 pc 00332adb /data/app/myapp-2/lib/arm/libngnative.so (_ZN9SkAdvisor22generateAllAdvicesOnceERK6CRouteb+ 566)
02-10 12:06:44.000 4166-4166/? A/DEBUG: #03 pc 0011033f /data/app/myapp-2/lib/arm/libngnative.so (NG_GetAdviceList+142)
02-10 12:06:44.000 4166-4166/? A/DEBUG: #04 pc 000efcab /data/app/myapp-2/lib/arm/libngnative.so (Java_com_skobbler_ngx_routing_SKRouteManager_geta dvicelist+38)
02-10 12:06:44.000 4166-4166/? A/DEBUG: #05 pc 006cb7d1 /data/app/myapp-2/oat/arm/base.odex (offset 0x658000)

In which scenario does Skobbler advices become invalid?

P.S. My code is very similar to Skobbler's demo project. The only difference is that I do the route calculation in one Activity and the navigation in another Activity. But it works properly on verions prior to the libpng fix (2.5.X).

21.02.2017, 17:11
The problem was caused while setting up SKAdvisorSettings. While updating Skobbler version I forgot to copy my custom advice sound file to the proper location.

Skobbler could not find the advice and configuration files for some specific languages (custom files) making the navigation not work properly.

I belive that Skobbler SDK should raise some exception or warning in this case, since the error is not really related to navigation data, like distances and time to destination. The advices should not become invalid just because the advice sound file could not be found.

So if you are having the same problem, please check if your advice files are in the correct folders.