Could not open detail.vbsp

[Lordeby]

I already download all before, and it worked but now i have reinstalled everything i get:
Verifying: C:\srcds\cstrike\detail.vbsp
Downloading: C:\srcds\cstrike\detail.vbsp
Could not open file C:\srcds\cstrike\detail.vbsp

Dit exact the same as the 1st time i downloaded it.
enyone has a clue?

thanks, Lordeby.