I'm trying to clear out some variables that I've previously used, so that I can use them again. I tried this in a different notebook and it worked, however, now, a command like :
Clear["a*", "b*", "c*", "m*", "A*"];
for some variables a1,a2,a3....gives:
Clear::wrsym: Symbol AbelianGroup is Protected. Clear::wrsym: Symbol Abort is Protected. Clear::wrsym: Symbol AbortKernels is Protected.
The thing is , the calculation still works, but I can't get rid of this error.