Add JsonConversionFailure back as it used by hyperlight-js

Signed-off-by: Simon Davies <simongdavies@users.noreply.github.com>

Author: simongdavies

src/hyperlight_host/Cargo.toml

@@ -41,6 +41,7 @@ thiserror = "2.0.12"
 tempfile = { version = "3.20", optional = true }
 anyhow = "1.0"
 metrics = "0.24.2"
+serde_json = "1.0"
 
 [target.'cfg(windows)'.dependencies]
 windows = { version = "0.61", features = [

src/hyperlight_host/src/error.rs

@@ -155,6 +155,10 @@ pub enum HyperlightError {
     #[cfg(kvm)]
     KVMError(#[from] kvm_ioctls::Error),
 
+    /// Conversion of str to Json failed
+    #[error("Conversion of str data to json failed")]
+    JsonConversionFailure(#[from] serde_json::Error),
+
     /// An attempt to get a lock from a Mutex failed.
     #[error("Unable to lock resource")]
     LockAttemptFailed(String),