fix debugging

libs/remix-debug/src/Ethdebugger.ts

@@ -196,6 +196,6 @@ export class Ethdebugger {
     if (this.breakpointManager && this.breakpointManager.hasBreakpoint()) {
       this.breakpointManager.jumpNextBreakpoint(false)
     }
-    this.storageResolver = new StorageResolver({ web3: this.traceManager.web3 })
+    this.storageResolver = new StorageResolver({ web3: this.traceManager.web3 })  
   }
 }

libs/remix-ui/debugger-ui/src/lib/debugger-ui.tsx

@@ -319,13 +319,21 @@ export const DebuggerUI = (props: DebuggerUIProps) => {
           })
         })
       } catch (error) {
-        unLoad()
-        setState(prevState => {
-          return {
-            ...prevState,
-            validationError: error.message || error
-          }
-        })
+        try {
+          unLoad()
+          setState(prevState => {
+            let errorMsg = error.message || error
+            if (typeof errorMsg !== 'string') {
+              errorMsg = JSON.stringify(errorMsg) + '. Possible error: the current endpoint does not support retrieving the trace of a transaction.'
+            }
+            return {
+              ...prevState,
+              validationError: errorMsg
+            }
+          })
+        } catch (e) {
+          console.error(e)
+        }
       }
     }, 300)
     handleResize()

libs/remix-ui/debugger-ui/src/lib/vm-debugger/global-variables.tsx

@@ -6,19 +6,19 @@ import Web3 from 'web3'
 export const GlobalVariables = ({ block, receipt, tx, className }) => {
   // see https://docs.soliditylang.org/en/latest/units-and-global-variables.html#block-and-transaction-properties
   const globals = {
-    'block.chainid': tx.chainId,
-    'block.coinbase': block.miner,
-    'block.difficulty': block.difficulty,
-    'block.gaslimit': block.gasLimit,
-    'block.number': block.number,
-    'block.timestamp': block.timestamp,
-    'msg.sender': tx.from,
-    'msg.sig': tx.input.substring(0, 10),
-    'msg.value': tx.value + ' Wei',
-    'tx.origin': tx.from
+    'block.chainid': tx && tx.chainId,
+    'block.coinbase': block && block.miner,
+    'block.difficulty': block && block.difficulty,
+    'block.gaslimit': block && block.gasLimit,
+    'block.number': block && block.number,
+    'block.timestamp': block && block.timestamp,
+    'msg.sender': tx && tx.from,
+    'msg.sig': tx && tx.input && tx.input.substring(0, 10),
+    'msg.value': tx && (tx.value + ' Wei'),
+    'tx.origin': tx && tx.from
   }
   if (block.baseFeePerGas) {
-    globals['block.basefee'] = Web3.utils.toBN(block.baseFeePerGas).toString(10) + ` Wei (${block.baseFeePerGas})`
+    globals['block.basefee'] = block && (Web3.utils.toBN(block.baseFeePerGas).toString(10) + ` Wei (${block.baseFeePerGas})`)
   }
 
   return (