一人開発でつまづいたときの処方箋

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5XJUUFS!BOESPIJ

JNQPSUΛਖ਼͘͠هड़͢Δ ༻๏ɿ"VUP*NQPSUઃఆ ༻ྔɿ"OESPJE4UVEJPΠϯετʔϧޙॳճ ࣗಈੜ੒ίʔυͷ࠶ੜ੒ ༻๏ɿ1SPKFDUͷ$MFBOͱ#VJME ༻ྔɿϒϥϯνΛ੾Γସ͑ͨޙ ͍Ζ͍ΖͳΩϟογϡΛ࡟আ͢Δ ༻๏ɿΩϟογϡΫϦΞ ༻ྔɿݪҼෆ໌ͷϏϧυΤϥʔ͕ൃੜͨ࣌͠ ॲɹํɹͤɹΜ

"EEVOBNCJHVPVTJNQPSUTPOUIFqZ ᶃ৽͍͠Ϋϥε౳Λೖྗͨ͠ࡍʹɺ࠷దͳJNQPSUจΛ௥Ճͯ͘͠ΕΔ ᶄJNQPSUର৅͕໌֬ͳ৔߹ͷΈɺࣗಈͰJNQPSUจΛૠೖ͢Δ

0QUJNJ[FJNQPSUTPOUIFqZ ᶃϑΝΠϧ಺શମͷJNQPSUΛ࠷దԽͯ͘͠ΕΔ ᶄϑΝΠϧ಺ͷෆཁͳJNQPSUจ΍هड़ҐஔͳͲ΋ௐ੔ͯ͘͠ΕΔ ᶅखಈͰߦ͏ํ๏΋͋Δɻ$PEF0QUJNJ[F*NQPSUT $OU 0QU 0 ˞ศརͳ൓໘ɺ๬·ͳ͍มߋ΋ൃੜ͢ΔՄೳੑ͕͋ΔͷͰɺࣗಈͱ खಈΛ͏·͘࢖͍෼͚Δඞཁ͕͋Γ·͢

IUUQTXXXKFUCSBJOTDPNIFMQJEFBDSFBUJOHBOEPQUJNJ[JOH JNQPSUTIUNM TFDUJPO8JOEPXT$SFBUJOH@BOE@0QUJNJ[JOH@NQPSUTYNM OUFMMJ+%&"ͷ"VUPNQPSUʹؔ͢Δϔϧϓ

/xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java:

Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ /xxxx/xxx.java: Τϥʔ: γϯϘϧ͕ݟ͚ͭΒΕ·ͤΜ

ࣗಈੜ੒͞ΕΔιʔείʔυ (MJEF΍%BHHFSͳͲͳͲʜʢ!(MJEF.PEVMF !$PNQPOFOU

௨ৗCVJMEσΟϨΫτϦ͸(JU؅ཧԽʹ͸ஔ͔ͳ͍ͨΊɺϒϥϯνΛ੾Γସ͑ͯ࡞ۀ͠ ͨ৔߹ʹɺࣗಈੜ੒͞Εͨιʔείʔυͷ಺༰͕Ϛον͠ͳ͍έʔε͕ى͜Δɻ ͳͥʁ … local.properties .keystore .DS_Store *.aab proguard-project.txt captures/**

**/.gradle **/.settings **/build .gradle … HJUJHOPSF

w $MFBO1SPKFDU#VJMEશͯͷதؒϏϧυϑΝΠϧͱΩϟογϡϏϧυϑΝΠϧΛ࡟আ͢Δ w 3FCVJME1SPKFDU$MFBO1SPKFDUͨ͠ޙɺ"1,Λੜ੒͢Δ ղܾํ๏

ΩϟογϡΫϦΞ DMFBO#VJME$BDIF

ls -l ~/.android/build-cache/ total 0 drwxr-xr-x 4 shimokawa staff 128

2 11 12:57 3.5.1 -rw-r--r-- 1 shimokawa staff 0 2 11 12:57 3.5.1.lock "OESPJE(SBEMF1MVHJO͕ੜ੒͢ΔϏϧυΩϟογϡ ˞ࠓ͸"OESPJEQMVHJOͷόʔδϣϯ͝ͱʹσΟϨΫτϦΛ࡞ΔͬΆ͍

શͯͷϏϧυΩϟογϡΛ࡟আ͢Δ ./gradlew cleanBuildCache ls -l total 0 -rw-r--r-- 1 shimokawa

staff 0 2 11 12:57 3.5.1.lock ˞IUUQTEFWFMPQFSBOESPJEDPNTUVEJPCVJMECVJMEDBDIF IMKB

ΩϟογϡΫϦΞ *OWBMJEBUFDBDIFBOESFTUBSU

ϏϧυΩϟογϡͷ࡟আͰ΋ղܾग़དྷͳ͍৔߹ͷɺ࠷ऴखஈͱͯ͠ࢼ͢΂͖ΞΫγϣϯ ͳͥ࠷ऴखஈͳͷ͔ʁ શͯͷϩʔΧϧΩϟογϡΛ࡟আͯ͠͠·͏ͨΊɺ ࣍ʹϓϩδΣΫτΛ։͍ͨͱ͖΍ॳճϏϧυʹ͕͔͔࣌ؒΔ શͯͷϩʔΧϧώετϦʔ͕࡟আ͞Ειʔείʔυͷมߋཤྺ͕ࣦΘΕͯ͠͏ͨΊɺ ಛఆͷঢ়ଶʹϩʔϧόοΫग़དྷͳ͘ͳͬͯ͠·͏ *OWBMJEBUFDBDIFBOESFTUBSUͱ͸ʁ

OUFMMJ+%&"ͷΩϟογϡΫϦΞʹؔ͢Δϔϧϓ IUUQTXXXKFUCSBJOTDPNIFMQJEFBXPSLJOHXJUI QSPKFDUTIUNMJOWBMJEBUFDBDIF ˞ϏϧυΩϟογϡͱ͔Ͱ͸ແ͍ɺ༷ʑͳϩʔΧϧΩϟογϡΛ࡟আ͍ͯ͠ΔΒ͍͠

঱ঢ়̎ ΞϓϦ͕Ϋϥογϡ͢Δ

ݪҼΛ୳Δ ༻๏ɿ4UBDL5SBDFΛ෼ղͯ͠ಡΈղ͘ ༻ྔɿΫϥογϡ͕खݩͰ࠶ݱग़དྷΔͱ͖ ղܾͷώϯτΛूΊΔ ༻๏ɿྨࣅέʔεͷ*TTVFΛ୳͢ ༻ྔɿࣗྗͰղܾग़དྷΔ໨ॲཱ͕ͨͳ͍ͱ͖ ॲɹํɹͤɹΜ

4UBDL5SBDFΛ෼ղͯ͠ಡΈղ͘

2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID:

16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF

2020-02-11 14:16:24.399 16984-16984/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID:

16984 java.lang.RuntimeException: Unable to start activity ComponentInfo{jp.smarby.debug/ jp.smarby.activities.landing.RegisterActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference at jp.smarby.activities.landing.RegisterActivity.onCreate(RegisterActivity.java:105) at android.app.Activity.performCreate(Activity.java:7136) at android.app.Activity.performCreate(Activity.java:7127) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) OVMMΛࢀরͯ͠Ϋϥογϡ͍ͯ͠Δ৔߹ͷ4UBDL5SBDF 3FHJTUFS"DUJWJUZKBWBͷߦ໨Ͱ 4USJOHΫϥεͷMFOHUIϝιουΛݺΜͰ͍ΔίʔυͰ Ϋϥογϡ͍ͯ͠Δ

2020-02-11 14:38:56.248 18143-18143/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID:

18143 android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@1a76d12 is not valid; is your activity running? at android.view.ViewRootImpl.setView(ViewRootImpl.java:798) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:356) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) at android.app.Dialog.show(Dialog.java:329) at androidx.appcompat.app.AlertDialog$Builder.show(AlertDialog.java:1009) at jp.smarby.activities.landing.RegisterActivity$3.run(RegisterActivity.java:300) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) ࢖༻͍ͯ͠Δ$POUFYU͕ద੾Ͱͳ͔ͬͨ৔߹ͷ4UBDL5SBDF

2020-02-11 14:38:56.248 18143-18143/jp.smarby.debug E/AndroidRuntime: FATAL EXCEPTION: main Process: jp.smarby.debug, PID:

18143 android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@1a76d12 is not valid; is your activity running? at android.view.ViewRootImpl.setView(ViewRootImpl.java:798) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:356) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) at android.app.Dialog.show(Dialog.java:329) at androidx.appcompat.app.AlertDialog$Builder.show(AlertDialog.java:1009) at jp.smarby.activities.landing.RegisterActivity$3.run(RegisterActivity.java:300) at android.os.Handler.handleCallback(Handler.java:873) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:6669) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) ࢖༻͍ͯ͠Δ$POUFYU͕ద੾Ͱͳ͔ͬͨ৔߹ͷ4UBDL5SBDF 3FHJTUFS"DUJWJUZKBWBͷߦ໨Ͱ "MFSU%JBMPH͕දࣔग़དྷͳ͔ͬͨʁͨΊ Ϋϥογϡ͍ͯ͠Δ