Merge pull request sphinx-labs#431 from chugsplash/pate/var-not-found…

…-error-log

fix(core): Add additional recommendation to clear contract artifact cache if var not found in storage layout

.changeset/short-mangos-listen.md

@@ -0,0 +1,5 @@
+---
+'@chugsplash/core': patch
+---
+
+Add recommendation to clear contract artifacts if variable not found in storage layout

packages/core/src/languages/solidity/storage.ts

@@ -510,7 +510,8 @@ export const computeStorageSlots = (
       throw new Error(
         `Could not find variable "${storageObj.label}" from the contract "${contractConfig.contract}" in your ChugSplash config file.\n` +
           `You must configure all variables that are defined in the contract.\n` +
-          `Did you forget to declare it in your ChugSplash config file?`
+          `Did you forget to declare it in your ChugSplash config file?` +
+          `You may also need to delete and regenerate your contract compilation artifacts.`
       )
     }
   }
@@ -530,7 +531,7 @@ export const computeStorageSlots = (
     if (!storageObj) {
       throw new Error(
         `variable "${variableName}" was defined in the ChugSplash config for ${contractConfig.contract}
-but does not exist as a variable in the contract`
+but does not exist as a variable in the contract. If you think this is a mistake, you may need to delete and regenerate your contract compilation artifacts.`
       )
     }