# Troubleshooting

> Solve TX Spell .NET for WPF problems from the symptom: a TXSpellChecker unknown in XAML, package errors, trial dialogs, dictionaries not found and deployment.

- **Product:** TX Spell .NET for WPF
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Spell .NET for WPF > Troubleshooting
- **Web URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/
- **LLMs URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/llms-full.txt

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## On This Page

- [Find the Right Page](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/#find-the-right-page)
- [Collect the Evidence First](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/#collect-the-evidence-first)
- [Where to Start](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/#where-to-start)

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## In This Section

- [Deployment](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/deployment/llms.txt): Fix a WPF application that checks spelling only on the development machine: assemblies and language data to copy, win-x64 publishing and the dialog language.
- [Dictionaries Not Found](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/dictionaries/llms.txt): Fix missing language data in WPF applications: folder errors, rejected hyphenation and synonym lists, wrong languages, language detection and user dictionaries.
- [Installation and Package Restore](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/installation/llms.txt): Fix package problems of TX Spell .NET for WPF: TXTextControl.TXSpell.WPF.SDK not found, error CS0246 below .NET 8, a missing TXSpellChecker and old references.
- [Licensing](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/licensing/llms.txt): Fix license problems of TX Spell .NET for WPF: the recurring trial dialog, txspell.wpf.license and the licenses.licx entries of TXSpellChecker and TXSpell.
- [Spell Checking](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/llms.txt): Fix spell checking in WPF: words left unmarked, IgnoreCase and IgnoreWord errors, calls that throw while the dialog is open, Create and the Document Editor.
- [Toolbox and Designer](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/toolbox/llms.txt): Fix design-time problems of TX Spell .NET for WPF: a spell checker missing from the toolbox, the XAML resource declaration and a TextControl not connected.

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## Nearby

- **Previous:** [Application Licensing](https://docs.textcontrol.com/tx-spell-dotnet-wpf/deployment/licensing/llms.txt)
- **Next:** [Installation and Package Restore](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/installation/llms.txt)