Hi, user bchidest
Are you using all components from TADP, for example, android sdk/ndk? Check Windows\Preference\Android, see whether the SDK path points to the right location in TADP installation folder.
Also, have you ever tried to update android sdk that TADP installed for you? If you did that and upgrade that,( we bundled 21.0.1, it’s possible you upgraded to 21.1), you need to run “Help\Check Updates” in Eclipse as well.
To be noted, those upgrades are not encouraged .
I see your needs to run SDK Manager to get emulator installed. If you only installed emulator, that should be fine.
Also, though Emulator could possible work. But most our sample bundled are for demoing Tegra specific features, that require a Tegra based device.