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title: Project Loading Errors
collection: mulesoft
version: current
locale: en-us
portal_url: https://docs.salesforce.com/mulesoft/current/en-us/anypoint-code-builder/troubleshoot-loading-errors.md
canonical_url: https://docs.mulesoft.com/anypoint-code-builder/troubleshoot-loading-errors
source_site: docs.mulesoft.com
content_type: documentation
content_hash: 32bceccc7eeef6229fc781198d1b1b5f41a71319c94cefe87a4ba6c19ee2eecf
description: MuleSoft Documentation Site
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---
---
product: Anypoint Code Builder
version: master
---

# Project Loading Errors

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

Errors sometimes occur when you open or start a project in Anypoint Code Builder.

## Loading Error in the Canvas

A **Loading…​** error in the graphical UI (canvas) often occurs under these conditions:

- When importing a project due to a missing dependency

To check for a missing dependency:

1.  Open the Output panel.

    Show me how

    - Use the keyboard shortcuts:

      - Mac: Cmd+Shift+u

      - Windows: Ctrl+Shift+u

    - Select **View** > **Output**.

2.  Select Mule DX Server from the dropdown list.

3.  Search for an error caused by the missing dependency, similar to this one:

    Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find
    org.mule.examples:accelerator-common-config-module:jar:mule-plugin:1.1.0 in
    https://repo.maven.apache.org/maven2/ was cached in the local repository, resolution will not be
    reattempted until the update interval of central has elapsed or updates are forced

4.  If you find a missing dependency, log in to Anypoint Platform.

    The canvas loads after all dependencies load.

    When a browser extension is interfering with the UI loading process, you see:

    ![Loading error in the UI](/mulesoft/current/en-us/anypoint-code-builder/_images/troubleshoot-loading-error.png)

To address this issue, try:

- Disabling browser extensions and reloading the application

- Using another browser that is not using extensions

- Clearing your browser’s cache and cookies, then reloading the application

- Opening Anypoint Code Builder in an incognito or private browsing window

## UI Canvas Renders Without Configured Flows or Subflows

If the UI for an application that is already configured with a flow or subflow treats your
application as a new project, prompting you with the question **How do you want to start building
your project?** and **Build a flow** and **Build a sub flow** creation options, make sure that your
application is open from its _root_ directory or from a multi-root workspace.

![Start Screen Building a Mule Application](/mulesoft/current/en-us/anypoint-code-builder/_images/acb-start-flow-subflow-ui.png)

Visual Studio Code treats an open directory as a workspace. For the project to load into a
workspace, the root directory of the project must be the top-level directory in the Explorer view,
or the project must belong to a
[multi-root workspace](https://code.visualstudio.com/docs/editing/workspaces/multi-root-workspaces).

1.  Open the Command Palette.

    Show me how

    - Use the keyboard shortcuts:

      - Mac: Cmd+Shift+p

      - Windows: Ctrl+Shift+p

    - Select **View** > **Command Palette**.

2.  Provide this command:

    ```command
    File: Open Folder...
    ```

3.  Navigate to the _root_ directory for your project.

    The root is the top-level folder that Anypoint Code Builder generates when it creates a project.
    Do not navigate to the project’s parent or ancestor directory or to one of its child or
    descendant directories.

See also [Importing Projects into Anypoint Code Builder](https://docs.mulesoft.com/anypoint-code-builder/int-import-mule-project) and
[Working with Workspaces](https://docs.mulesoft.com/anypoint-code-builder/start-workspaces).

## Mule DX API Component Was Not Installed

The error indicates that some Anypoint Code Builder dependencies have not finished loading. This
issue typically occurs when you click **Design an API** and is often accompanied by the notification
**Extracting Mule runtime: This operation may take a while…​**. The extraction process can take
several minutes, particularly after you install or update Anypoint Extension Pack.

1.  Wait for the error **Mule DX API Component was not installed** to disappear.

2.  Retry your action.

To monitor the progress of backend processes:

1.  Open the Output panel.

    Show me how

    - Use the keyboard shortcuts:

      - Mac: Cmd+Shift+u

      - Windows: Ctrl+Shift+u

    - Select **View** > **Output**.

2.  Select **Mule DX Server** from the dropdown list in the panel. To see scaffolding errors only,
    select **Mule DX Server: Scaffolding** from the list.

## Dependency Resolution Error

The error `There was an issue solving the dependencies for the asset` occurs when a dependency is
missing. Usually, the appears after you import or open an integration or implementation project that
is missing one or more dependencies for a connector operation.

To address this issue and avoid other errors, try logging in to Anypoint Platform, and wait for the
project to finish loading before attempting to resolve any missing dependencies that remain.

## Slow Project Load Times

If your project takes more than a few seconds to load on the canvas, check for:

- A large number of configuration files in `src/main/mule/`

- Oversized DataWeave scripts written inline in the XML instead of in external `.dwl` files

- Excessive or unused dependencies in the `pom.xml` file

Reducing any of these can improve how quickly the canvas loads and responds.

## See Also

- [Known Issues](https://help.salesforce.com/s/issues)