[rohan_shenoy]

Thanks Kevin.

Right now, there is no bb_capabilities meta_key for every user. Therefore, I must create it using PHP/SQL code it seems!

[rohan_shenoy]

It is fixed in trunk, you can copy the changes to your install from here – https://trac.bbpress.org/changeset?new=2383%40%2F&old=2381%40%2F

Thanks a lot Gautam

On second thought,

Can you please tell me why the error arised? I had not edited any php file. All I did was fiddled with database!

[rohan_shenoy]

I am thinking of writing a converter. See here

[rohan_shenoy]

If you have a config.php file in an directory above it, temporarily rename that config.php to x_config.php or some other name. Now complete the bbPress installation and then again rename x_config.php to config.php.

That solved my issue.