JetBrains/intellij-community · error · EvaluateException

Evaluation is not possible during the project analysis

Error message

Evaluation is not possible during the project analysis

What it means

Error "Evaluation is not possible during the project analysis" thrown in JetBrains/intellij-community.

Source

Thrown at java/debugger/impl/src/com/intellij/debugger/ui/breakpoints/Breakpoint.java:641

  private static ExpressionEvaluator createExpressionEvaluator(Project project,
                                                               PsiElement contextPsiElement,
                                                               SourcePosition contextSourcePosition,
                                                               TextWithImports text,
                                                               Function<? super PsiElement, ? extends PsiCodeFragment> fragmentFactory)
    throws EvaluateException {
    try {
      if (Registry.is("debugger.compiling.evaluator.force")) throw new UnsupportedExpressionException("force compilation");
      return EvaluatorBuilderImpl.build(text, contextPsiElement, contextSourcePosition, project);
    }
    catch (UnsupportedExpressionException ex) {
      ExpressionEvaluator eval = CompilingEvaluatorImpl.create(project, contextPsiElement, fragmentFactory);
      if (eval != null) {
        return eval;
      }
      throw ex;
    }
    catch (IndexNotReadyException ex) {
      throw new EvaluateException(JavaDebuggerBundle.message("evaluation.error.during.indexing"), ex);
    }
  }

  private PsiCodeFragment createConditionCodeFragment(PsiElement context) {
    return createCodeFragment(myProject, getCondition(), context);
  }

  private PsiCodeFragment createLogMessageCodeFragment(PsiElement context) {
    return createCodeFragment(myProject, getLogMessage(), context);
  }

  private static PsiCodeFragment createCodeFragment(Project project, TextWithImports text, PsiElement context) {
    return DebuggerUtilsEx.findAppropriateCodeFragmentFactory(text, context).createPsiCodeFragment(text, context, project);
  }

  protected String calculateEventClass(EvaluationContextImpl context, LocatableEvent event) throws EvaluateException {
    String className = null;
    final ObjectReference thisObject = (ObjectReference)context.computeThisObject();

View on GitHub (pinned to be881553f2)

Solutions

1. Wait until project indexing/analysis (dumb mode) finishes, then evaluate the expression again.

Example fix

Wait for the indexing progress bar in the status bar to complete, then press Alt+F8 to evaluate.

When it happens

Trigger: An evaluation is requested while the IDE is in dumb mode (project analysis in progress).

Common situations: Evaluating expressions in the debugger immediately after opening the project or while a large re-index is running.

AI-assisted analysis of JetBrains/intellij-community@be881553f2 (2026-08-14). Data as JSON: /api/errors/0d91ac237d9c57cb. Report an issue: GitHub.