<nativehr>0x80070057</nativehr><nativestack></nativestack> ArgumentException
While developing query with Linq To Sharepoint, most probably you have a wrong target platform; you must target ALL your project to x64 platform.
"Considerate la vostra semenza: fatti non foste a viver come bruti ma per seguir virtute e canoscenza" (Dante)
<nativehr>0x80070057</nativehr><nativestack></nativestack> ArgumentException