java.lang.RuntimeException: Unable to start activity ComponentInfo{de.babytemp.babytempapp2/de.babytemp.babytempapp2.MainActivity}: java.lang.IllegalArgumentException: Unknown pattern character 'X'

Stack Overflow | mr__710 | 11 months ago
  1. 0

    Android App - Unable to start activity ComponentInfo

    Stack Overflow | 11 months ago | mr__710
    java.lang.RuntimeException: Unable to start activity ComponentInfo{de.babytemp.babytempapp2/de.babytemp.babytempapp2.MainActivity}: java.lang.IllegalArgumentException: Unknown pattern character 'X'
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    BlueMix service error with Android app - 'Unknown pattern character 'X''

    Stack Overflow | 1 year ago | Kieran Fraser
    java.lang.IllegalArgumentException: Unknown pattern character 'X'
  3. 0

    GitHub comment 92#238702739

    GitHub | 4 months ago | Cervator
    java.lang.IllegalArgumentException: Unknown pattern character 'X'
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  5. 0

    Android parse String to Date - unknown pattern character 'X'

    Stack Overflow | 2 years ago | Matjaž Mav
    java.lang.RuntimeException: Unable to start service com.dotmav.runescapenotifier.GEService@384655b5 with Intent { cmp=com.dotmav.runescapenotifier/.GEService }: java.lang.IllegalArgumentException: Unknown pattern character 'X'

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Root Cause Analysis

  1. java.lang.IllegalArgumentException

    Unknown pattern character 'X'

    at java.text.SimpleDateFormat.validatePatternCharacter()
  2. Java RT
    SimpleDateFormat.<init>
    1. java.text.SimpleDateFormat.validatePatternCharacter(SimpleDateFormat.java:314)
    2. java.text.SimpleDateFormat.validatePattern(SimpleDateFormat.java:303)
    3. java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:356)
    3 frames
  3. Gson
    GsonBuilder.create
    1. com.google.gson.DefaultDateTypeAdapter.<init>(DefaultDateTypeAdapter.java:49)
    2. com.google.gson.GsonBuilder.addTypeAdaptersForDate(GsonBuilder.java:555)
    3. com.google.gson.GsonBuilder.create(GsonBuilder.java:543)
    3 frames
  4. de.babytemp.babytempapp2
    MainActivity.onCreate
    1. de.babytemp.babytempapp2.Channel.<init>(Channel.java:46)
    2. de.babytemp.babytempapp2.MainActivity.onCreate(MainActivity.java:41)
    2 frames
  5. Android Platform
    ActivityThread.performLaunchActivity
    1. android.app.Activity.performCreate(Activity.java:5990)
    2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
    3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
    3 frames