The Server failed to start. How can this be resolved?

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At this moment I am busy at https://gettingstarted.mendixcloud.com/link/module/5/lecture/216. The learning path. After saving new page Course_NewEdit and then Run Locally I got this Error message: 'The server failed to start. See details for the server log.' Here is the log (after a second try): Exception in thread "main" java.lang.VerifyError: Uninitialized object exists on backward branch 209 Exception Details:   Location:     scala/collection/immutable/HashMap$HashTrieMap.split()Lscala/collection/immutable/Seq; @249: goto   Reason:     Error exists in the bytecode   Bytecode:     0x0000000: 2ab6 005b 04a0 001e b200 b3b2 00b8 04bd     0x0000010: 0002 5903 2a53 c000 bab6 00be b600 c2c0     0x0000020: 00c4 b02a b600 31b8 003b 3c1b 04a4 015e     0x0000030: 1b05 6c3d 2a1b 056c 2ab6 0031 b700 c63e     0x0000040: 2ab6 0031 021d 787e 3604 2ab6 0031 0210     0x0000050: 201d 647c 7e36 05bb 0014 59b2 00b8 2ab6     0x0000060: 0033 c000 bab6 00ca b700 cd1c b600 d13a     0x0000070: 0619 06c6 001a 1906 b600 d5c0 0081 3a07     0x0000080: 1906 b600 d8c0 0081 3a08 a700 0dbb 00da     0x0000090: 5919 06b7 00dd bf19 073a 0919 083a 0abb     0x00000a0: 0002 5915 0419 09bb 0014 59b2 00b8 1909     0x00000b0: c000 bab6 00ca b700 cd03 b800 e33a 0e3a     0x00000c0: 0d03 190d b900 e701 0019 0e3a 1136 1036     0x00000d0: 0f15 0f15 109f 0027 150f 0460 1510 190d     0x00000e0: 150f b900 ea02 00c0 0005 3a17 1911 1917     0x00000f0: b800 ee3a 1136 1036 0fa7 ffd8 1911 b800     0x0000100: f2b7 0060 3a0b bb00 0259 1505 190a bb00     0x0000110: 1459 b200 b819 0ac0 00ba b600 cab7 00cd     0x0000120: 03b8 00e3 3a13 3a12 0319 12b9 00e7 0100     0x0000130: 1913 3a16 3615 3614 1514 1515 9f00 2715     0x0000140: 1404 6015 1519 1215 14b9 00ea 0200 c000     0x0000150: 053a 1819 1619 18b8 00f5 3a16 3615 3614     0x0000160: a7ff d819 16b8 00f2 b700 603a 0cb2 00fa     0x0000170: b200 b805 bd00 0259 0319 0b53 5904 190c     0x0000180: 53c0 00ba b600 beb6 00fd b02a b600 3303     0x0000190: 32b6 00ff b0                              Stackmap Table:     same_frame(@35)     full_frame(@141,{Object[#2],Integer,Integer,Integer,Integer,Integer,Object[#109]},{})     append_frame(@151,Object[#129],Object[#129])     full_frame(@209,{Object[#2],Integer,Integer,Integer,Integer,Integer,Object[#109],Object[#129],Object[#129],Object[#129],Object[#129],Top,Top,Object[#20],Object[#55],Integer,Integer,Object[#107]},{Uninitialized[#159],Uninitialized[#159],Integer,Object[#129]})     full_frame(@252,{Object[#2],Integer,Integer,Integer,Integer,Integer,Object[#109],Object[#129],Object[#129],Object[#129],Object[#129],Top,Top,Object[#20],Object[#55],Integer,Integer,Object[#107]},{Uninitialized[#159],Uninitialized[#159],Integer,Object[#129]})     full_frame(@312,{Object[#2],Integer,Integer,Integer,Integer,Integer,Object[#109],Object[#129],Object[#129],Object[#129],Object[#129],Object[#2],Top,Object[#20],Object[#55],Integer,Integer,Object[#107],Object[#20],Object[#55],Integer,Integer,Object[#107]},{Uninitialized[#262],Uninitialized[#262],Integer,Object[#129]})     full_frame(@355,{Object[#2],Integer,Integer,Integer,Integer,Integer,Object[#109],Object[#129],Object[#129],Object[#129],Object[#129],Object[#2],Top,Object[#20],Object[#55],Integer,Integer,Object[#107],Object[#20],Object[#55],Integer,Integer,Object[#107]},{Uninitialized[#262],Uninitialized[#262],Integer,Object[#129]})     full_frame(@395,{Object[#2],Integer},{})     at scala.collection.immutable.HashMap$.scala$collection$immutable$HashMap$$makeHashTrieMap(HashMap.scala:182)     at scala.collection.immutable.HashMap$HashMap1.updated0(HashMap.scala:217)     at scala.collection.immutable.HashMap.updated(HashMap.scala:59)     at scala.collection.immutable.Map$Map4.updated(Map.scala:201)     at scala.collection.immutable.Map$Map4.$plus(Map.scala:202)     at scala.collection.immutable.Map$Map4.$plus(Map.scala:180)     at scala.collection.mutable.MapBuilder.$plus$eq(MapBuilder.scala:29)     at scala.collection.mutable.MapBuilder.$plus$eq(MapBuilder.scala:25)     at scala.collection.TraversableLike.$anonfun$groupBy$4(TraversableLike.scala:327)     at scala.collection.TraversableLike$$Lambda$57/1279309678.apply(Unknown Source)     at scala.collection.TraversableLike$WithFilter.$anonfun$foreach$1(TraversableLike.scala:789)     at scala.collection.TraversableLike$WithFilter$$Lambda$58/1106131243.apply(Unknown Source)     at scala.collection.mutable.HashMap.$anonfun$foreach$1(HashMap.scala:138)     at scala.collection.mutable.HashMap$$Lambda$59/107456312.apply(Unknown Source)     at scala.collection.mutable.HashTable.foreachEntry(HashTable.scala:236)     at scala.collection.mutable.HashTable.foreachEntry$(HashTable.scala:229)     at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40)     at scala.collection.mutable.HashMap.foreach(HashMap.scala:138)     at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:788)     at scala.collection.TraversableLike.groupBy(TraversableLike.scala:326)     at scala.collection.TraversableLike.groupBy$(TraversableLike.scala:318)     at scala.collection.mutable.ArrayOps$ofRef.groupBy(ArrayOps.scala:191)     at com.mendix.container.deployment.Dsl$Support$Eviction$.$anonfun$partition$1(Dsl.scala:234)     at com.mendix.container.deployment.Dsl$Support$Eviction$$$Lambda$44/1773638882.apply(Unknown Source)     at com.mendix.container.deployment.Dsl$Support$.toURLs(Dsl.scala:146)     at com.mendix.container.deployment.Dsl$Component.toURLs(Dsl.scala:83)     at com.mendix.container.deployment.Dsl$Component.select(Dsl.scala:79)     at com.mendix.container.deployment.Model$.project(Model.scala:46)     at com.mendix.container.boot.Container$.doStart(Container.scala:119)     at com.mendix.container.boot.Container$.$anonfun$start$3(Container.scala:108)     at com.mendix.container.boot.Container$$$Lambda$29/843467284.apply(Unknown Source)     at com.mendix.container.boot.Container$.time(Container.scala:180)     at com.mendix.container.boot.Container$.start(Container.scala:108)     at com.mendix.container.boot.Main$.$anonfun$new$1(Main.scala:11)     at com.mendix.container.boot.Main$$$Lambda$16/1226622409.apply(Unknown Source)     at scala.util.Either.flatMap(Either.scala:338)     at com.mendix.container.config.ProjectConfig$.run(ProjectConfig.scala:64)     at com.mendix.container.boot.Main$.delayedEndpoint$com$mendix$container$boot$Main$1(Main.scala:11)     at com.mendix.container.boot.Main$delayedInit$body.apply(Main.scala:9)     at scala.Function0.apply$mcV$sp(Function0.scala:34)     at scala.Function0.apply$mcV$sp$(Function0.scala:34)     at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)     at scala.App.$anonfun$main$1$adapted(App.scala:76)     at scala.App$$Lambda$10/453211571.apply(Unknown Source)     at scala.collection.immutable.List.foreach(List.scala:389)     at scala.App.main(App.scala:76)     at scala.App.main$(App.scala:74)     at com.mendix.container.boot.Main$.main(Main.scala:9)     at com.mendix.container.boot.Main.main(Main.scala)    
asked
2 answers
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Go to Project menu / Clean deployment directory and try again to run the project.

answered
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If the above doesn't work then restart pc. That has worked for me.

answered