feat (docs): add model assignment error troubleshooting page (#2223)

content/docs/08-troubleshooting/03-common-issues/30-model-is-not-assignable-to-type.mdx

@@ -0,0 +1,21 @@
+---
+title: Model is not assignable to type "LanguageModelV1"
+description: Troubleshooting errors related to incompatible models.
+---
+
+# Model is not assignable to type "LanguageModelV1"
+
+## Issue
+
+I have updated the AI SDK and now I get the following error: `Type 'SomeModel' is not assignable to type 'LanguageModelV1'.`
+
+<Note>Similar errors can occur with `EmbeddingModelV1` as well.</Note>
+
+## Background
+
+Sometimes new features are being added to the model specification.
+This can cause incompatibilities with older provider versions.
+
+## Solution
+
+Update your provider packages and the AI SDK to the latest version.

content/docs/08-troubleshooting/03-common-issues/index.mdx

@@ -11,5 +11,9 @@ description: Troubleshooting information for common issues encountered with the
 - [ Strange Stream Output ](/docs/troubleshooting/common-issues/strange-stream-output)
 - [ Streamable UI Errors ](/docs/troubleshooting/common-issues/streamable-ui-errors)
 - [ Streaming Not Working When Deploying on Vercel ](/docs/troubleshooting/common-issues/streaming-not-working-on-vercel)
+- [ Streaming Not Working When Deploying on Vercel (Next.js Pages Router) ](/docs/troubleshooting/common-issues/streaming-not-working-on-vercel-pages-router)
+- [ Getting Timeouts When Deploying on Vercel](/docs/troubleshooting/common-issues/timeouts-on-vercel)
 - [ Unclosed Streams ](/docs/troubleshooting/common-issues/unclosed-streams)
 - [ useChat Failed to Parse Stream ](/docs/troubleshooting/common-issues/use-chat-failed-to-parse-stream)
+- [ NaN token counts when using streamText with OpenAI models](/docs/troubleshooting/common-issues/nan-token-counts-openai-streaming)
+- [ Model is not assignable to type "LanguageModelV1" ](/docs/troubleshooting/common-issues/model-is-not-assignable-to-type)