module main;

void main ()
{
    writeln("Hello");
}

Of course, this won't compile, but error message is confused:

C:\Git\hello\source>dmd app.d
app.d(5): Error:
object.Error@(0): Access Violation
----------------
0x0065445A
0x006548FE
0x0064DBD3
0x004B0B90
0x004B8A02
0x00594813
0x005797E2
0x77E40608 in RtlAllocateHeap
0x77E3EB5E in RtlAllocateHeap
0x77E2DD5A in RtlRandom
0x004E0F98
0x005B6D16
0x0047BFCA
0x005DD152

On Tuesday, 13 February 2018 at 05:51:05 UTC, Domain wrote:
> module main;
>
> void main ()
> {
>     writeln("Hello");
> }
>
> Of course, this won't compile, but error message is confused:
>
> C:\Git\hello\source>dmd app.d
> app.d(5): Error:
> object.Error@(0): Access Violation
> ----------------
> 0x0065445A
> 0x006548FE
> 0x0064DBD3
> 0x004B0B90
> 0x004B8A02
> 0x00594813
> 0x005797E2
> 0x77E40608 in RtlAllocateHeap
> 0x77E3EB5E in RtlAllocateHeap
> 0x77E2DD5A in RtlRandom
> 0x004E0F98
> 0x005B6D16
> 0x0047BFCA
> 0x005DD152

erh?

I get a good enough error message(v2.078.2)

Exit code is: 1
..Error: `writeln` is not defined, perhaps `import std.stdio;` is needed?

Sounds more like you have env issues.

On Tuesday, February 13, 2018 05:51:05 Domain via Digitalmars-d-learn wrote:
> module main;
>
> void main ()
> {
>      writeln("Hello");
> }
>
> Of course, this won't compile, but error message is confused:
>
> C:\Git\hello\source>dmd app.d
> app.d(5): Error:
> object.Error@(0): Access Violation
> ----------------
> 0x0065445A
> 0x006548FE
> 0x0064DBD3
> 0x004B0B90
> 0x004B8A02
> 0x00594813
> 0x005797E2
> 0x77E40608 in RtlAllocateHeap
> 0x77E3EB5E in RtlAllocateHeap
> 0x77E2DD5A in RtlRandom
> 0x004E0F98
> 0x005B6D16
> 0x0047BFCA
> 0x005DD152

Report it on bugzilla: https://issues.dlang.org

My guess would be that the printf that's printing the error message is being given a null string or something along those lines, so it segfaults.

- Jonathan M Davis

On 02/13/2018 06:51 AM, Domain wrote:
> module main;
> 
> void main ()
> {
>      writeln("Hello");
> }
> 
> Of course, this won't compile, but error message is confused:
> 
> C:\Git\hello\source>dmd app.d
> app.d(5): Error:
> object.Error@(0): Access Violation

This is issue 18403. You should see an error message with some highlighted code, but dmd crashes when it tries to print that. You can invoke dmd with `-color=off` to work around the issue, or go back to 2.078.1 until we get a release with the fix.

https://issues.dlang.org/show_bug.cgi?id=18403