安装ABAP ADT遇“未找到仓库”错误，已尝试多方案无效求助

Hey there, let's work through this frustrating ADT installation error you're hitting. The "missing com.sap.ui.treemap 3.0.0" issue typically happens because the 2019-09 HANA tools repo you're using no longer hosts that specific bundle, or there's a problem with Eclipse's dependency resolution cache. You've already tried the basic fixes, so let's dive into more targeted solutions:

1. Switch to a Compatible ADT Repository #

The 2019-09 repo might have archived or removed older dependencies like com.sap.ui.treemap. Try these repo alternatives:

• Use the SAP archive repo: Add https://tools.hana.ondemand.com/archive to your Eclipse software sites. This repo keeps older versions of SAP tools, so you can select the ADT build that matches your 2019-09 Eclipse installation.
• Upgrade to the latest compatible repo: If you're open to updating your Eclipse (or if your current version supports it), switch to the latest general ADT repo: https://tools.hana.ondemand.com/latest. This repo pulls in all required dependencies automatically for the most recent ADT builds.

2. Clear Eclipse's p2 Cache #

Corrupted p2 cache files often mess up dependency collection. Here's how to clean them:

• Shut down Eclipse completely.
• Navigate to your Eclipse installation folder, find the p2 directory, and delete its cache subfolder.
• Also, delete the p2 cache in your user profile: Go to C:\Users\ssp2\.eclipse\jee-2019-09\p2 and remove the cache-related files here.
• Restart Eclipse and try installing ADT again.

3. Install ADT Offline #

Online repo issues can be bypassed with an offline installation package:

• Grab the offline ADT zip file that matches your 2019-09 Eclipse version from SAP's official resources.
• In Eclipse, go to Help > Install New Software, click Add > Archive, and select the downloaded zip file.
• Proceed with the offline install—this skips online dependency checks and uses all the files included in the package.

4. Adjust Installation Settings to Avoid Auto-Repo Checks #

Sometimes Eclipse tries to pull dependencies from unrelated repos, causing conflicts:

• When starting the ADT install, uncheck the box that says "Contact all update sites during install to find required software".
• This forces Eclipse to only use the repos you've explicitly added, preventing it from looking for missing bundles in incompatible places.

A quick reminder: Make sure your Eclipse 2019-09 version is officially supported by the ADT version you're trying to install—SAP lists compatibility on their ADT download page, so double-check that you're not mixing mismatched versions.

内容的提问来源于stack exchange，提问作者sachin patil