Android Studio Download Failed: Check SDK and Gradle

When an Android Studio download failed after the IDE was installed, locate the first missing SDK component, Gradle distribution, or dependency artifact. Keep the project and requested versions unchanged while identifying the downloading process and host; a working browser or a later compiler error cannot verify the failed transfer.

Key Takeaways:

• SDK Manager, the Gradle wrapper, and dependency repositories are different download paths.
• Record the process, machine, repository, and file before changing proxy settings.
• Retry the same input on an approved connection and check the original download result.
• Preserve licenses, credentials, certificate checks, dependency verification, and project files.

Where do you look when an Android Studio download failed?

Look for the earliest download-related error in the operation you actually requested. An IDE installer failing is outside this workflow: start here after Android Studio is installed and a setup, SDK, sync, or build action tries to retrieve another component. Android Studio needs network access for activities such as remote repositories and Gradle initialization, even though some work can continue offline.［1］

Save the project before another attempt. Record the Studio version, operating system, SDK package name or dependency coordinate, requested version, command or IDE action, timestamp, and first error. Avoid copying a full log into a public issue: repositories can expose internal hostnames, project paths, credentials, and tokens. Keep a private original and share only a redacted excerpt around the failed request.

If other applications also fail, begin with the broader device and application troubleshooting sequence. If the error is only in the build download, stay with the specific process. A shell package manager has its own acquisition stages; the Homebrew download-stage workflow is a separate comparison, not an Android configuration recipe.

Step 1: Is this an Android SDK download failed or a Gradle transfer?

Identify the artifact first. SDK packages, the Gradle distribution, and build dependencies may fail at different times and use different hosts. Changing a single IDE setting without classifying the download makes it difficult to know what the next successful result means.

1. Note whether the failed action was SDK Manager, initial project setup, Gradle sync, or a command-line task.
2. Copy the first failed artifact name and destination host from the available error details.
3. Identify whether the request was made on your computer, in a container, or on a CI/remote host.
4. Match the observation to the table before retrying.

Failed item	Useful identity to preserve	What a successful retry verifies
SDK package	Package name, revision, and configured SDK location	That component downloaded and installed as reported by SDK Manager
Gradle distribution	Wrapper configuration and requested distribution version	The wrapper obtained the configured Gradle distribution
Repository metadata or dependency	Repository host and dependency coordinate/version	The original repository request or artifact transfer completed
Later compile or resource task	Task name and first build error	A separate build result, not proof of the earlier connection cause

A build can stop before reaching compilation. It can also finish downloading and then fail because its inputs are incompatible. Preserve those two outcomes as separate records. The owner of a private repository should confirm its access rules; public documentation cannot establish your account's authorization.

Do not change dependency versions, repositories, or the Gradle wrapper to hide a timeout. That creates a new request rather than repairing the original one, and it may alter the project's reproducibility. If the project already uses dependency locks or verification metadata, leave them intact throughout the comparison.

Step 2: Which process owns the proxy configuration?

Read the current Studio HTTP Proxy page and the applicable Gradle settings before editing. The official Studio documentation distinguishes IDE proxy configuration from command-line or CI Gradle use. Gradle documents JVM proxy properties, with separate HTTP and HTTPS settings that may be supplied through gradle.properties.［1］［2］

Open Android Studio's Settings, or its corresponding macOS settings entry, and locate Appearance & Behavior → System Settings → HTTP Proxy. Record whether it uses automatic detection, a PAC URL, a manual server, or no proxy. Menu wording can vary with the Studio build; use the current configuration documentation rather than assuming an old screenshot matches your device.［1］

For Gradle, check the relevant project and user-level property files and any command-line JVM configuration with the project owner. A proxy used by an IDE-launched operation should not be assumed to govern a separately launched terminal task. Conversely, do not copy credentials into a tracked build file merely because a public example shows proxy authentication properties.［2］

Windows readers can compare the existing system proxy settings before changing a local proxy address. Preserve organizational proxy and certificate requirements. If an old localhost proxy is referenced, verify that its owner and process still exist before correcting just that entry. Do not clear all proxy configuration to force a build through an unapproved path.

Record only host, mode, and whether credentials are required in your shareable notes. Redact passwords and tokens from property files, environment variables, and URLs. If a managed proxy asks for credentials you do not have, stop and contact its administrator rather than retrying different identities.

Step 3: How do you test the actual download host?

Use an authorized alternate network only after the error points to connection setup or transfer. Keep the SDK revision, Gradle distribution, dependency coordinates, repository configuration, and workspace unchanged. A certificate, licensing, or explicit authorization failure should enter its own handling branch instead of becoming an excuse to cycle through network routes.

For a local development workstation, connect AethoVPN on the machine that performs the failed SDK or Gradle request and enable global mode. The Windows client and Debian/Ubuntu x64 package cover those supported desktop platforms; a Mac uses a configuration from the official setup guide and requires Pro or Premium. Select a nearby or home-country location from the App's current list, then retry the original SDK component and the original Gradle operation separately so their results remain attributable to their own download paths.

This changes the connection used for those requests; it does not accept SDK licenses, supply private repository credentials, or resolve incompatible dependencies. If the transfer happens in CI, a remote build host, or a separately routed container, connecting your laptop does not establish that host's network path. New users who need this local comparison can create an account by email to begin the one-time 3-day free Pro trial.

On Linux, first check the platform and package limits of a VPN setup if the workstation is outside Debian/Ubuntu x64. Do not generalize the product's Linux steps to another distribution or architecture. Use an approved connection suitable for that host or ask its operator to investigate.

You can follow the connection verification sequence to establish that the VPN itself is connected. Return afterward to SDK Manager or the original Gradle task. The task-level evidence is the component or artifact completing, not a connected icon or a browser homepage loading. A public IP check is unnecessary for this download-specific decision.

Step 4: What stays fixed during a Gradle dependency download timeout?

Repeat the same IDE action or project command that first failed. If your command includes a task name, variant, or project path, preserve it. Do not invent a generic build command that changes the requested workload; use the project's documented task and run it from the original working directory.

1. Save the baseline error and note the connection used.
2. Change only the approved network path, keeping project and version inputs fixed.
3. Retry the SDK download or the original Gradle operation once.
4. Record whether the original artifact completed and whether a later error replaced the timeout.
5. Restore any temporary, authorized proxy change and record the retained configuration.

A retry may reuse cached files. If no download occurred, report that the task used its existing cache; do not call it a successful transfer test. Avoid deleting the whole Gradle or SDK cache just to manufacture a clean result. If the owner needs a genuine re-download, agree on a narrow, documented operation for the affected artifact first.

If the new outcome is a compiler error, the original download may have progressed while the project remains unbuilt. Record both facts without claiming the VPN repaired the build. If the same connection timeout recurs, preserve the failed host and stage rather than stacking further changes onto the project.

Step 5: Which errors should leave the network workflow?

Route explicit authentication and permission failures to the repository or organization owner. HTTP 401 and 403 are not complete diagnoses by themselves, but they warrant checking legitimate credentials, permissions, and repository policy before another path test. Do not spoof a client or change repositories to bypass an explicit refusal.

For a certificate trust error, preserve TLS validation and identify the trust store used by the downloading process. An IDE and a Gradle JVM may not have identical trust configuration; involve the administrator responsible for organizational certificates. Do not add an arbitrary downloaded certificate or disable verification to get a green build.［1］［2］

A missing dependency, incompatible plugin version, rejected SDK license, or compilation failure belongs to a different owner and evidence set. Collect the artifact identity, Studio and Gradle versions, execution machine, first error, and comparison result. Restore temporary settings before handing the case off, and do not include private sources or credentials in the report.

Summary

• Identify the SDK component, Gradle distribution, or dependency before editing settings.
• Establish which process and host perform the download.
• Keep project inputs and trust controls unchanged during the network comparison.
• Verify each original transfer separately and distinguish any later build failure.
• Escalate license, credential, certificate, and dependency problems with redacted evidence.

FAQ

Does this workflow cover the Android Studio installer?

It starts after the IDE is installed and another component fails to download. A failure retrieving the Studio installation package needs its own installer and distribution-source investigation, rather than changes to an existing project's Gradle configuration.

Are the Gradle distribution and dependencies the same download?

They are separate artifacts with separate purposes: the distribution supplies Gradle, while repositories supply the project's dependencies. Identify the first failed file and host instead of marking every build-related request as one SDK error.

Why does a browser work while SDK Manager or Gradle fails?

The browser can use a different connection configuration or reach a different host. Compare the actual downloading process, proxy mode, authentication, and trust settings, then confirm its own artifact result.［1］［2］

Will connecting my laptop repair a remote build?

Your laptop connection does not verify the CI runner or remote machine's traffic. Diagnose the host that performs the transfer and follow its operator's approved networking and credential rules.

Should I treat every 401 or 403 as a connection timeout?

No: preserve the response and check legitimate repository access with its owner. Credentials, permissions, or service policy may require correction; another connection does not establish authorization to download a private artifact.

Can I disable certificate verification to complete a download?

Keep certificate verification enabled and resolve the correct process's trust chain with the responsible administrator. An accepted transfer without verification does not provide the evidence needed to trust a build input.［2］

Should I delete the Gradle cache after a timeout?

Do not delete the whole cache as a first response. Record the failed artifact, preserve locks and verification metadata, and use a narrow documented retry when needed; cache reuse is not proof of a fresh successful download.

Sources

1. Android Developers — Configure Android Studio — https://developer.android.com/studio/intro/studio-config
2. Gradle — Networking with Gradle — https://docs.gradle.org/current/userguide/networking.html

Sources checked 6 October 2026.

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