Wrap all errors with tracerr

common/utils.go

@@ -5,6 +5,7 @@ import (
 	"math/big"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
+	"github.com/hermeznetwork/tracerr"
 	"github.com/iden3/go-iden3-crypto/babyjub"
 )
 
@@ -29,7 +30,7 @@ func EthAddrToBigInt(a ethCommon.Address) *big.Int {
 func BJJFromStringWithChecksum(s string) (*babyjub.PublicKey, error) {
 	b, err := hex.DecodeString(s)
 	if err != nil {
-		return nil, err
+		return nil, tracerr.Wrap(err)
 	}
 	pkBytes := SwapEndianness(b)
 	var pkComp babyjub.PublicKeyComp