Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
Xamarin form app : Java.Lang.RuntimeException: Font asset not found /data/user/0/com.packagenamemodified/cache/Barlow-SemiBold.ttf
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(278.4, 24%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EUR%3C/text%3E%3C/svg%3E)
Uragonda, Rajesh
31
Reputation points
Recently we have noticed "Font not found exception" happening randomly.
This issue is happening on android devices and seems to be not specific to device or android version and dont have any specific scenario, it happens randomly.
Below are the stack traces found.
GroupableItemsViewAdapter_2.onBindViewHolder
GroupableItemsViewAdapter_2.java, line 47
Java.Lang.RuntimeException: Font asset not found /data/user/0/com.packagenamemodified/cache/Barlow-SemiBold.ttf
Stacktrace:
JniEnvironment+StaticMethods.CallStaticObjectMethod (Java.Interop.JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args)
JniPeerMembers+JniStaticMethods.InvokeObjectMethod (System.String encodedMember, Java.Interop.JniArgumentValue* parameters)
Typeface.CreateFromFile (System.String path)
FontExtensions.TryGetFromAssets (System.String fontName)
FontExtensions.ToTypeFace (System.String fontfamily, Xamarin.Forms.FontAttributes attr)
FontExtensions.CreateTypeface (System.Tuple`2[T1,T2] key)
ConcurrentDictionary`2[TKey,TValue].GetOrAdd (TKey key, System.Func`2[T,TResult] valueFactory)
FontExtensions.ToTypeface (System.String fontFamily, Xamarin.Forms.FontAttributes fontAttributes)
FontExtensions.ToTypeface (Xamarin.Forms.Font self)
LabelRenderer.UpdateFont ()
LabelRenderer.UpdateText ()
LabelRenderer.OnElementChanged (Xamarin.Forms.Platform.Android.ElementChangedEventArgs`1[TElement] e)
LabelRenderer.set_Element (Xamarin.Forms.Label value)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
VisualElementPackager.AddChild (Xamarin.Forms.VisualElement view, Xamarin.Forms.Platform.Android.IVisualElementRenderer oldRenderer, Xamarin.Forms.Platform.Android.RendererPool pool, System.Boolean sameChildren)
VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement)
VisualElementPackager.Load ()
VisualElementRenderer`1[TElement].SetPackager (Xamarin.Forms.Platform.Android.VisualElementPackager packager)
VisualElementRenderer`1[TElement].SetElement (TElement element)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
VisualElementPackager.AddChild (Xamarin.Forms.VisualElement view, Xamarin.Forms.Platform.Android.IVisualElementRenderer oldRenderer, Xamarin.Forms.Platform.Android.RendererPool pool, System.Boolean sameChildren)
VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement)
VisualElementPackager.Load ()
VisualElementRenderer`1[TElement].SetPackager (Xamarin.Forms.Platform.Android.VisualElementPackager packager)
VisualElementRenderer`1[TElement].SetElement (TElement element)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
VisualElementPackager.AddChild (Xamarin.Forms.VisualElement view, Xamarin.Forms.Platform.Android.IVisualElementRenderer oldRenderer, Xamarin.Forms.Platform.Android.RendererPool pool, System.Boolean sameChildren)
VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement)
VisualElementPackager.Load ()
VisualElementRenderer`1[TElement].SetPackager (Xamarin.Forms.Platform.Android.VisualElementPackager packager)
VisualElementRenderer`1[TElement].SetElement (TElement element)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
VisualElementPackager.AddChild (Xamarin.Forms.VisualElement view, Xamarin.Forms.Platform.Android.IVisualElementRenderer oldRenderer, Xamarin.Forms.Platform.Android.RendererPool pool, System.Boolean sameChildren)
VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement)
VisualElementPackager.Load ()
FrameRenderer.OnElementChanged (Xamarin.Forms.Platform.Android.ElementChangedEventArgs`1[TElement] e)
FrameRenderer.set_Element (Xamarin.Forms.Frame value)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
VisualElementPackager.AddChild (Xamarin.Forms.VisualElement view, Xamarin.Forms.Platform.Android.IVisualElementRenderer oldRenderer, Xamarin.Forms.Platform.Android.RendererPool pool, System.Boolean sameChildren)
VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement)
VisualElementPackager.Load ()
VisualElementRenderer`1[TElement].SetPackager (Xamarin.Forms.Platform.Android.VisualElementPackager packager)
VisualElementRenderer`1[TElement].SetElement (TElement element)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
ItemContentView.CreateRenderer (Xamarin.Forms.View view, Android.Content.Context context)
ItemContentView.RealizeContent (Xamarin.Forms.View view)
TemplatedItemViewHolder.Bind (System.Object itemBindingContext, Xamarin.Forms.ItemsView itemsView, System.Action`1[T] reportMeasure, System.Nullable`1[T] size)
ItemsViewAdapter`2[TItemsView,TItemsViewSource].BindTemplatedItemViewHolder (Xamarin.Forms.Platform.Android.TemplatedItemViewHolder templatedItemViewHolder, System.Object context)
StructuredItemsViewAdapter`2[TItemsView,TItemsViewSource].BindTemplatedItemViewHolder (Xamarin.Forms.Platform.Android.TemplatedItemViewHolder templatedItemViewHolder, System.Object context)
StructuredItemsViewAdapter`2[TItemsView,TItemsViewSource].OnBindViewHolder (AndroidX.RecyclerView.Widget.RecyclerView+ViewHolder holder, System.Int32 position)
SelectableItemsViewAdapter`2[TItemsView,TItemsSource].OnBindViewHolder (AndroidX.RecyclerView.Widget.RecyclerView+ViewHolder holder, System.Int32 position)
GroupableItemsViewAdapter`2[TItemsView,TItemsViewSource].OnBindViewHolder (AndroidX.RecyclerView.Widget.RecyclerView+ViewHolder holder, System.Int32 position)
RecyclerView+Adapter.n_OnBindViewHolder_Landroidx_recyclerview_widget_RecyclerView_ViewHolder_I (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_holder, System.Int32 position)
(wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.118(intptr,intptr,intptr,int)
java.lang.RuntimeException: Font asset not found /data/user/0/com.packagenamemodified/cache/Barlow-SemiBold.ttf
android.graphics.Typeface.createFromFile Typeface.java:1188
android.graphics.Typeface.createFromFile Typeface.java:1202
crc643f46942d9dd1fff9.GroupableItemsViewAdapter_2.n_onBindViewHolder(Native Method)
crc643f46942d9dd1fff9.ShellContentFragment.onCreateView
ShellContentFragment.java, line 69
Java.Lang.RuntimeException: Font not found /data/user/0/com.packagenamemodified/cache/Lora-Bold.ttf
JniEnvironment+StaticMethods.CallStaticObjectMethod (Java.Interop.JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args)
JniPeerMembers+JniStaticMethods.InvokeObjectMethod (System.String encodedMember, Java.Interop.JniArgumentValue* parameters)
Typeface.CreateFromFile (System.String path)
FontExtensions.TryGetFromAssets (System.String fontName)
FontExtensions.ToTypeFace (System.String fontfamily, Xamarin.Forms.FontAttributes attr)
FontExtensions.CreateTypeface (System.Tuple`2[T1,T2] key)
ConcurrentDictionary`2[TKey,TValue].GetOrAdd (TKey key, System.Func`2[T,TResult] valueFactory)
FontExtensions.ToTypeface (System.String fontFamily, Xamarin.Forms.FontAttributes fontAttributes)
FontExtensions.ToTypeface (Xamarin.Forms.Font self)
LabelRenderer.UpdateFont ()
LabelRenderer.UpdateText ()
LabelRenderer.OnElementChanged (Xamarin.Forms.Platform.Android.ElementChangedEventArgs`1[TElement] e)
LabelRenderer.set_Element (Xamarin.Forms.Label value)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
VisualElementPackager.AddChild (Xamarin.Forms.VisualElement view, Xamarin.Forms.Platform.Android.IVisualElementRenderer oldRenderer, Xamarin.Forms.Platform.Android.RendererPool pool, System.Boolean sameChildren)
VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement)
VisualElementPackager.Load ()
VisualElementRenderer`1[TElement].SetPackager (Xamarin.Forms.Platform.Android.VisualElementPackager packager)
VisualElementRenderer`1[TElement].SetElement (TElement element)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
ScrollViewContainer.set_ChildView (Xamarin.Forms.View value)
ScrollViewRenderer.LoadContent ()
ScrollViewRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
VisualElementPackager.AddChild (Xamarin.Forms.VisualElement view, Xamarin.Forms.Platform.Android.IVisualElementRenderer oldRenderer, Xamarin.Forms.Platform.Android.RendererPool pool, System.Boolean sameChildren)
VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement)
VisualElementPackager.Load ()
VisualElementRenderer`1[TElement].SetPackager (Xamarin.Forms.Platform.Android.VisualElementPackager packager)
VisualElementRenderer`1[TElement].SetElement (TElement element)
IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element)
Platform.CreateRenderer (Xamarin.Forms.VisualElement element, Android.Content.Context context)
ShellContentFragment.OnCreateView (Android.Views.LayoutInflater inflater, Android.Views.ViewGroup container, Android.OS.Bundle savedInstanceState)
Fragment.n_OnCreateView_Landroid_view_LayoutInflater_Landroid_view_ViewGroup_Landroid_os_Bundle_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_inflater, System.IntPtr native_container, System.IntPtr native_savedInstanceState)
(wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.115(intptr,intptr,intptr,intptr,intptr)
java.lang.RuntimeException: Font not found /data/user/0/com.packagenamemodified/cache/Lora-Bold.ttf
android.graphics.Typeface.createFromFile Typeface.java:930
Developer technologies | .NET | Xamarin
{count} vote
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(316.8, 40%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYL%3C/text%3E%3C/svg%3E)
Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,156 Reputation points Microsoft External Staff2022-05-19T02:11:27.183+00:00 Have you tried to clean up the
bin/andobj/folder and rebuild the project?Did you update your VS in recent time?
I found an issue might be helpful for you. Random Android Font resource issues after upgrading to VS 16.6.2.
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Uragonda, Rajesh 31 Reputation points
2022-05-19T11:52:13.597+00:00 Thanks for sharing the github issue.
It says the issue is fixed on Xamarin.Android SDK version 11.0.0.3.
I am already on the updated version and this should not be happening.
Unable to figure what is the cause, any inputs on this would be helpful.Thanks,
Rajesh Uragonda.
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Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,156 Reputation points Microsoft External Staff
2022-05-20T02:03:52.447+00:00 I used Microsoft Visual Studio Community 2022 (64-bit) - Current Version 17.1.6 and Xamarin.Android SDK 12.2.4.3 (d17-1/fc1125e) testing for hours, and the error is never occurring.
Does the issue occur in a new project?
If so, you can refer to Report a problem with the Visual Studio product or installer to report this problem.
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Uragonda, Rajesh 31 Reputation points
2022-05-26T18:56:21.157+00:00 Hi YonglunLiu-MSFT,
Unable to confirm the reproducibility on the new project as it is rarely reproducible, even in the existing project we were able to reproduce only once out of many trials.
May I know that the sample project that you have tested uses custom fonts and has more number of pages?
I have also raised an issue on Visual studio community.
https://developercommunity.visualstudio.com/t/Xamarin-form-app-:-JavaLangRuntimeExce/10050295?entry=myfeedbackThanks,
Rajesh Uragonda.
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