Android development portal Common Errors

1. R. java file, right-click the project on the Internet and select Android tools, and select fix project propertise. If this is the case, add r. there is still an error in the Java file, so I don't know what to do. It's amazing to delete eclipse, reinstall the configuration, and create a new project, I still don't know what's going on.

2. When running the android project, an error is reported:

[2012-10-19 17:49:14-androidtest] ------------------------------
[17:49:14-androidtest] Android launch!
[17:49:14-androidtest] the connection to ADB is down, and a severe error has occured.
[17:49:14-androidtest] You must restart ADB and eclipse.
[17:49:14-androidtest] Please ensure that ADB is correctly located at 'C: \ Program Files \ Android-SDK \ platform-tools \ adb.exe 'and can be executed.

But adb.exe 'is indeed in 'd: \ Program
Files \ Android-SDK-Windows \ platform-tools \ adb.exe 'is the same if I restart eclipse.

The original reason for netsearch is adb.exe.
The program is not running, or the program is not modified under the specified path.

Solution: 1) Add the ADB path to the environment variable path and save it to Chongqing eclipse.

2. If you haven't been able to solve the problem, then you can execute "cmd.exe ".
Manually run ADB start-server or adb.exe kill-Server

3) if it still cannot be run, it indicates that the background program of pods is running and occupies some resources. Open the task manager and close the pods process,
OK, the problem is solved ......