Compiling Error Compiling

[xLiL-MeLx]

When i did this code

sudo apt-get install subversion autoconf automake make g++ libxml2 libxml2-dev libxml++2.6-dev lua5.1 liblua5.1-0 liblua5.1-0-dev libboost-dev libboost-regex-dev libboost-thread-dev libmysql++-dev libgmp3-dev liblua5.1-sql-mysql2 liblua5.1-sql-sqlite2 liblua5.1-sql-mysql-dev liblua5.1-sql-sqlite-dev && svn checkout https://forgottenserver.svn.sourceforge.net/svnroot/forgottenserver/ && cd forgottenserver/ && make

I got

god@c-f55be353:~/Desktop/Mystic Spirit$ sudo apt-get install subversion autoconf automake make g++ libxml2 libxml2-dev libxml++2.6-dev lua5.1 liblua5.1-0 liblua5.1-0-dev libboost-dev libboost-regex-dev libboost-thread-dev libmysql++-dev libgmp3-dev liblua5.1-sql-mysql2 liblua5.1-sql-sqlite2 liblua5.1-sql-mysql-dev liblua5.1-sql-sqlite-dev libsqlite3-dev && svn checkout https://forgottenserver.svn.sourceforge.net/svnroot/forgottenserver/ && cd forgottenserver/forgttenserver/ && make
Reading package lists... Done
Building dependency tree
Reading state information... Done
subversion is already the newest version.
autoconf is already the newest version.
automake is already the newest version.
make is already the newest version.
g++ is already the newest version.
libxml2 is already the newest version.
libxml2-dev is already the newest version.
libxml++2.6-dev is already the newest version.
lua5.1 is already the newest version.
liblua5.1-0 is already the newest version.
liblua5.1-0-dev is already the newest version.
libboost-dev is already the newest version.
libboost-regex-dev is already the newest version.
libboost-thread-dev is already the newest version.
libmysql++-dev is already the newest version.
libgmp3-dev is already the newest version.
liblua5.1-sql-mysql2 is already the newest version.
liblua5.1-sql-sqlite2 is already the newest version.
liblua5.1-sql-mysql-dev is already the newest version.
liblua5.1-sql-sqlite-dev is already the newest version.
libsqlite3-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 22 not upgraded.
Error validating server certificate for 'https://forgottenserver.svn.sourceforge.net:443':
- The certificate is not issued by a trusted authority. Use the
fingerprint to validate the certificate manually!
Certificate information:
- Hostname: *.svn.sourceforge.net
- Valid: from Tue, 09 Oct 2007 14:15:07 GMT until Mon, 08 Dec 2008 15:15:07 GMT
- Issuer: Equifax Secure Certificate Authority, Equifax, US
- Fingerprint: fb:75:6c:40:58:ae:21:8c:63:dd:1b:7b:6a:7d:bb:8c:74:36:e7:8a
(R)eject, accept (t)emporarily or accept (p)ermanently?