> ## Documentation Index
> Fetch the complete documentation index at: https://anvil.servicetitan.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Error Message – Code

> ErrorMessage displays error states with optional retry functionality.

export const LiveCode = ({children, customHeight, clickToLoad, example, fullWidth, fullHeight, hideCodeInLiveCode, screenshot, screenshotOnly, showCode: showCodeProp}) => {
  const SCREENSHOTS_BASE = "https://servicetitan.github.io/anvil2-docs-live-code/screenshots";
  const STACKBLITZ_BASE = "https://stackblitz.com/github/servicetitan/anvil2-docs-live-code/tree/main/examples";
  const [showCodeBlock, setShowCodeBlock] = useState(showCodeProp ?? false);
  const [isLocalOverride, setIsLocalOverride] = useState(false);
  useEffect(() => {
    const examplePath = `/images/live-code-screenshots-tmp/${example}.png`;
    fetch(examplePath, {
      method: "HEAD"
    }).then(r => {
      if (r.ok) setIsLocalOverride(true);
    }).catch(() => {});
  }, [example]);
  const screenshotBase = isLocalOverride ? "/images/live-code-screenshots-tmp" : SCREENSHOTS_BASE;
  if (screenshotOnly) {
    return <Frame className="flex flex-col">
        <div className="flex dark:hidden" style={{
      justifyContent: "center",
      alignItems: "center",
      width: fullWidth ? "100%" : "50%",
      minHeight: fullHeight ? "284px" : undefined,
      background: "#FFFFFF"
    }}>
          <img srcset={`${screenshotBase}/${example}.png, ${screenshotBase}/${example}-2x.png 2x`} src={`${screenshotBase}/${example}.png`} alt={example} noZoom />
        </div>
        <div className="hidden dark:flex" style={{
      justifyContent: "center",
      alignItems: "center",
      width: fullWidth ? "100%" : "50%",
      minHeight: fullHeight ? "284px" : undefined,
      background: "#141414"
    }}>
          <img srcset={`${screenshotBase}/${example}-dark.png, ${screenshotBase}/${example}-dark-2x.png 2x`} src={`${screenshotBase}/${example}-dark.png`} alt={example} noZoom />
        </div>
      </Frame>;
  }
  if (screenshot) {
    return <Frame className="flex flex-col -mb-2">
        <div className="flex dark:hidden bg-white dark:bg-codeblock border border-gray-950/10 dark:border-white/10 dark:twoslash-dark rounded-2xl overflow-hidden" style={{
      justifyContent: "center",
      alignItems: "center",
      width: fullWidth ? "100%" : "50%",
      minHeight: fullHeight ? "284px" : undefined
    }}>
          <img srcset={`${screenshotBase}/${example}.png, ${screenshotBase}/${example}-2x.png 2x`} src={`${screenshotBase}/${example}.png`} alt={example} noZoom />
        </div>

        <div className="hidden dark:flex bg-white dark:bg-codeblock border border-gray-950/10 dark:border-white/10 dark:twoslash-dark rounded-2xl overflow-hidden" style={{
      background: "#141414",
      justifyContent: "center",
      alignItems: "center",
      width: fullWidth ? "100%" : "50%",
      minHeight: fullHeight ? "284px" : undefined
    }}>
          <img srcset={`${screenshotBase}/${example}-dark.png, ${screenshotBase}/${example}-dark-2x.png 2x`} src={`${screenshotBase}/${example}-dark.png`} alt={example} noZoom />
        </div>

        <div className="flex justify-end items-center text-xs py-2 px-1 gap-4">
          {!showCodeProp ? <button className="inline-flex justify-end items-center text-gray-700 dark:text-gray-50 hover:text-blue-500 dark:hover:text-blue-300 transition-colors group self-end gap-1 cursor-pointer" onClick={() => setShowCodeBlock(!showCodeBlock)} style={{
      appearance: "none"
    }}>
              <Icon icon="code" size="12px" className="group-hover:bg-blue-500 dark:group-hover:bg-blue-300" />
              <span>{showCodeBlock ? "Hide code" : "Show code"}</span>
            </button> : null}

          <a className="inline-flex justify-end items-center hover:text-blue-500 dark:hover:text-blue-300 transition-colors group self-end gap-1" href={`${STACKBLITZ_BASE}/${example}?file=src/App.tsx`} target="_blank" rel="noreferrer">
            <Icon icon="bolt" size="12px" className="group-hover:bg-blue-500 dark:group-hover:bg-blue-300" />
            <span>StackBlitz demo</span>
          </a>
        </div>

        <div className="grid transition-[grid-template-rows] duration-300 ease-in-out overflow-auto overflow-y-hidden overflow-x-auto" style={showCodeBlock ? {
      gridTemplateRows: "1fr"
    } : {
      gridTemplateRows: "0fr"
    }}>
          <div style={{
      minHeight: 0,
      overflowX: "auto",
      overflowY: "hidden",
      marginBlockStart: "-1.25rem",
      marginBlockEnd: "-1.5rem"
    }}>
            {children}
          </div>
        </div>
      </Frame>;
  } else {
    return <div style={{
      display: "flex",
      width: fullWidth ? "100%" : "50%",
      minHeight: customHeight ? customHeight : "316px",
      resize: "vertical",
      overflow: "auto"
    }}>
        <iframe title={example} style={{
      flex: 1,
      width: fullWidth ? "100%" : "50%",
      minHeight: customHeight ? customHeight : "316px"
    }} src={`${STACKBLITZ_BASE}/${example}?embed=1&hideNavigation=1&hideExplorer=1&terminalHeight=0&file=src/App.tsx${clickToLoad ? "&ctl=1" : ""}${hideCodeInLiveCode ? "&view=preview" : ""}`} allow="accelerometer; ambient-light-sensor; camera; encrypted-media; geolocation; gyroscope; hid; microphone; midi; payment; usb; vr; xr-spatial-tracking" sandbox="allow-forms allow-modals allow-popups allow-presentation allow-same-origin allow-scripts" />
      </div>;
  }
};

<Tabs>
  <Tab title="Implementation">
    <LiveCode showCode example="ext-atlas-error-message-demo" fullWidth screenshot>
      ```tsx lines expandable theme={null}
      import { ErrorMessage } from "@servicetitan/anvil2-ext-atlas";
      import { Card, Flex, Text } from "@servicetitan/anvil2";

      function App() {
        return (
          <Flex direction="column" gap={4} style={{ width: "388px" }}>
            <Card flexDirection="column" gap={2} background="strong">
              <Text size="medium" variant="eyebrow">
                With Error String
              </Text>
              <ErrorMessage
                error="Failed to load response"
                message="Previous message content"
                onRetry={() => console.log("retry clicked")}
              />
            </Card>

            <Card flexDirection="column" gap={2} background="strong">
              <Text size="medium" variant="eyebrow">
                With Error Boolean
              </Text>
              <ErrorMessage
                error={true}
                message="An error occurred while processing your request"
                onRetry={() => console.log("retry clicked")}
              />
            </Card>
          </Flex>
        );
      }

      export default App;
      ```
    </LiveCode>

    ## Common Examples

    ### Basic Usage

    Standalone error display:

    ```tsx theme={null}
    import { ErrorMessage } from "@servicetitan/anvil2-ext-atlas";

    function ErrorMessageExample() {
      return (
        <ErrorMessage
          error="Unable to process your request"
          onRetry={() => retryRequest()}
        />
      );
    }
    ```

    ### With Fallback Message

    Use boolean error with fallback message:

    ```tsx theme={null}
    import { ErrorMessage } from "@servicetitan/anvil2-ext-atlas";

    function ErrorMessageFallback() {
      return (
        <ErrorMessage
          error={true}
          message="Something went wrong. Please try again."
          onRetry={() => retryRequest()}
        />
      );
    }
    ```

    ### Without Retry

    Error display without retry option:

    ```tsx theme={null}
    import { ErrorMessage } from "@servicetitan/anvil2-ext-atlas";

    function ErrorMessageNoRetry() {
      return (
        <ErrorMessage error="This action cannot be completed at this time." />
      );
    }
    ```
  </Tab>

  <Tab title="ErrorMessage API">
    ```tsx theme={null}
    <ErrorMessage
      error="Something went wrong"
      message="Fallback message"
      onRetry={handleRetry}
    />
    ```

    ## `ErrorMessage` Props

    <ParamField path="error" type="string | boolean" required>
      The error message to display. If boolean `true`, uses `message` prop instead.
    </ParamField>

    <ParamField path="className" type="string">
      Additional CSS class name for custom styling.
    </ParamField>

    <ParamField path="message" type="string">
      Fallback message to display when `error` is `true`.
    </ParamField>

    <ParamField path="onRetry" type="() => void">
      Callback for retry button. Button only renders when provided.
    </ParamField>
  </Tab>
</Tabs>