Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Android Android Lists and Adapters (2015) Using Parcelable Data Retrieving Parcelable Data

Tomasz Bagiński
Tomasz Bagiński
3,153 Points
Posted by Tomasz Bagiński
Tomasz Bagiński
3,153 Points

WeatherApp -> click on "daily button" -> app crash ( "Class not found when unmarshalling: Europe/Warsaw" )

Hi

:/ i added '''text''' and it don't work - sorry for this inconvenience

Can you help me with this strange for me error in code ?:)

When I clicked daily button I cached this Exception:

E/Parcel: Class not found when unmarshalling: Europe/Warsaw java.lang.ClassNotFoundException: Invalid name: Europe/Warsaw

from stacktrace : com.example.tomas.weatherapp.ui.DailyForecastActivity.onCreate(DailyForecastActivity.java:39) it's: ''' 39: Parcelable[] parcelables = intent.getParcelableArrayExtra(MainActivity.DAILY_FORECAST); '''

09-18 12:38:02.656 4823-4823/com.example.tomas.weatherapp E/Parcel: Class not found when unmarshalling: Europe/Warsaw java.lang.ClassNotFoundException: Invalid name: Europe/Warsaw at java.lang.Class.classForName(Native Method) at java.lang.Class.forName(Class.java:400) at android.os.Parcel.readParcelableCreator(Parcel.java:2508) at android.os.Parcel.readParcelable(Parcel.java:2462) at android.os.Parcel.readParcelableArray(Parcel.java:2570) at android.os.Parcel.readValue(Parcel.java:2419) at android.os.Parcel.readArrayMapInternal(Parcel.java:2732) at android.os.BaseBundle.unparcel(BaseBundle.java:269) at android.os.Bundle.getParcelableArray(Bundle.java:887) at android.content.Intent.getParcelableArrayExtra(Intent.java:6285) at com.example.tomas.weatherapp.ui.DailyForecastActivity.onCreate(DailyForecastActivity.java:39) at android.app.Activity.performCreate(Activity.java:6679) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2618) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1477) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6119) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

Tomasz Bagiński
Tomasz Bagiński
3,153 Points
Tomasz Bagiński
Tomasz Bagiński
3,153 Points

HALF SOLVE

I forgot to write this line in Day.java: mIcon = in.readString();

public void writeToParcel(Parcel parcel, int i) {
parcel.writeLong(mTime);
parcel.writeString(mSummary);
parcel.writeDouble(mTeperatureMax);
parcel.writeString(mIcon);
parcel.writeString(mTimeZone);
}

must be the same order :

public Day(Parcel in) {
    mTime = in.readLong();
    mSummary = in.readString();
    mTeperatureMax = in.readDouble();
    mIcon = in.readString();
    mTimeZone = in.readString();
}

2 Answers

Tarek M.Tolba
PLUS
Tarek M.Tolba
Courses Plus Student 3,613 Points
Tarek M.Tolba
Tarek M.Tolba
Courses Plus Student 3,613 Points

Can you upload your project on github, so i can check it?

Tomasz Bagiński
Tomasz Bagiński
3,153 Points
Tomasz Bagiński
Tomasz Bagiński
3,153 Points

Tarek thank you for your reply but I don't know how I fixed this problem :) [ answer is above ]

daniel davis
daniel davis
7,572 Points
daniel davis
daniel davis
7,572 Points

Wow that fixed my null pointer exception as well. Thanks!