I can't install a platform in eclipse

1. When I choose available packages and Click the repository site checkbox to display the components available for installation I get a line check box that says "some packages were found but are not compatible updates" from my s开发者_StackOverflow中文版dk manager i have downloaded every package and have updated everything so I do not understand why there are NO Available packages?

2. also when I created an avd to see the emulator work I get the following message after I click launch

"invalid command-line parameter: Files\Android\android-sdk\tools/emulator-arm.exe. Hint: use '@foo' to launch a virtual device named 'foo'. please use -help for more information"

It appears the command line above has a forward slash instead of a back slash. Any thought on how to get this working

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You should install the Android SDK in a folder that doesn't contain spaces... Spaces make everything go wild...

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invalid command-line parameter: Files\Android\android-sdk......

This error is reported because you installed the sdk in "Program Files" directory. Please make sure that you install the sdk in a folder without any spaces in the name.