Set main file command with no valid file name

Data handling command with no main file selected

Unable to open specified data files

Test for file exists command with no name specified

Test window command with no window specified

Test menu command with no menu specified

Redraw numbered fields command with no window open

Insufficient memory for a list operation

Set final line number command with an invalid line number

Clear fields command with fields in different files

Insufficient memory to reverse reversible commands

Fields command with no window open

Enter data resumed without the enter data window open

Close window command without an open window name

Redraw fields command with fields in different files

Update files command when not in prepare mode

Set procedure command with no procedure specified

Set or clear control procedure command with no window open

Set title command with no window open

Enter data command with no window open