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MQL5 runtime error reference

MQL5 Error 4114: Error adding an indicator to chart

MQL5 error 4114 officially means "Error adding an indicator to chart." ChartIndicatorAdd reports 4114 when the chart and indicator use different symbols or timeframes. Other attachment failures can report different codes; record the actual result. Create the indicator for the same symbol and timeframe as the target chart. Validate the handle and window index; release a handle only where the caller owns its lifecycle and no longer needs it. Capture GetLastError immediately around the failing call so an older error is not mistaken for the current failure.

Open MQL5 Coding AgentReview the diagnostic example

Open the Coding Agent and choose MQL5 from the language menu.

Isolate runtime error 4114.mq5
bool AddIndicator(const long chart_id,const int subwindow,const int handle)
  {
   if(handle==INVALID_HANDLE) return false;
   long window_count=0;
   ResetLastError();
   if(!ChartGetInteger(chart_id,CHART_WINDOWS_TOTAL,0,window_count))
     {
      PrintFormat("ChartGetInteger failed, error=%d",GetLastError());
      return false;
     }
   if(subwindow<0 || subwindow>window_count) return false;

   ResetLastError();
   if(!ChartIndicatorAdd(chart_id,subwindow,handle))
     {
      PrintFormat("ChartIndicatorAdd failed, error=%d",GetLastError());
      return false;
     }
   return true;
  }
  • Official meaning: Error adding an indicator to chart
  • Layer: terminal runtime
  • Read with: GetLastError
  • First step: isolate the failing call

Where error 4114 comes from

ChartIndicatorAdd reports 4114 when the chart and indicator use different symbols or timeframes. Other attachment failures can report different codes; record the actual result. The numeric value is listed in the official runtime error table, which is separate from MetaEditor compilation errors and trade server return codes.

Reset the last-error state before the suspected call, save its direct return value, and read GetLastError immediately afterward. This produces a causal log instead of a stale code.

Checks that narrow the cause

Preserve the exact parameters and terminal context that produced the failure. Check one precondition at a time before adding retries.

  • Reject INVALID_HANDLE before ChartIndicatorAdd.
  • Read CHART_WINDOWS_TOTAL with ChartGetInteger; an index equal to the count requests a new subwindow.
  • Confirm the chart ID still exists and the indicator handle was created successfully.
  • Log the handle, chart ID, subwindow, and GetLastError together.

Apply the smallest repair

Create the indicator for the same symbol and timeframe as the target chart. Validate the handle and window index; release a handle only where the caller owns its lifecycle and no longer needs it.

After the repair, test both the expected path and a deliberately invalid input. The second test confirms that the diagnostic branch still exposes failures.

Use a focused diagnostic

This helper fragment reads the chart window count through ChartGetInteger and permits the equal-count new-window case. The caller must create a matching symbol/timeframe handle and retain responsibility for releasing it. The helper does not release a borrowed handle.

A clean compile or a cleared error code does not prove strategy logic, broker compatibility, backtest quality, or live-trading safety. Reproduce the result in the target MetaTrader 5 terminal and account environment.

Isolate runtime error 4114.mq5
bool AddIndicator(const long chart_id,const int subwindow,const int handle)
  {
   if(handle==INVALID_HANDLE) return false;
   long window_count=0;
   ResetLastError();
   if(!ChartGetInteger(chart_id,CHART_WINDOWS_TOTAL,0,window_count))
     {
      PrintFormat("ChartGetInteger failed, error=%d",GetLastError());
      return false;
     }
   if(subwindow<0 || subwindow>window_count) return false;

   ResetLastError();
   if(!ChartIndicatorAdd(chart_id,subwindow,handle))
     {
      PrintFormat("ChartIndicatorAdd failed, error=%d",GetLastError());
      return false;
     }
   return true;
  }
Where Pineify fits

Repair editable MQL5 source with compiler feedback

Pineify can generate or revise MQL5 source and use MQL5 compilation diagnostics during the coding workflow. Keep the exact error, source location, program type, and intended behavior in the request so the change remains reviewable.

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Pineify does not run your broker terminal, Strategy Tester, market data, or live orders. Validate the final program in your own MetaTrader 5 environment.

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A practical verification workflow

  1. 1

    Reset the error state

    Call ResetLastError directly before the suspected function so the next code belongs to that operation.

  2. 2

    Record call and inputs

    Save the function return value, every input, and GetLastError. Confirm that the captured runtime code is 4114.

  3. 3

    Validate the preconditions

    Reject INVALID_HANDLE before ChartIndicatorAdd. Read CHART_WINDOWS_TOTAL with ChartGetInteger; an index equal to the count requests a new subwindow. Confirm the chart ID still exists and the indicator handle was created successfully. Log the handle, chart ID, subwindow, and GetLastError together.

  4. 4

    Retest in the target terminal

    Compile the changed source, repeat the failing operation, and test the surrounding EA or indicator behavior in MetaTrader 5.

Frequently asked questions

What does MQL5 error 4114 mean?

The official runtime error table defines 4114 as "Error adding an indicator to chart."

Is error 4114 a compiler error?

No in this context. It is a terminal runtime code. Compiler diagnostics and MqlTradeResult.retcode values use separate code tables.

Why should I call ResetLastError first?

The terminal stores the last runtime error. Resetting it before the suspected call makes the following GetLastError value easier to attribute to that call.

Check the linked official references for the relevant diagnostic. Compile and test the final source in the MetaTrader 5 build, broker, symbol, and account environment you plan to use.

Continue with reviewable MQL5 source

Provide the exact diagnostic and intended behavior, inspect the generated change, compile it, and verify it in your MT5 test environment.

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