# Missing } inserted \end{center} i got this error while running following code

\documentclass[a4paper,12pt]{report}
\usepackage{graphicx}
\begin{document}
\begin{center}
{\normalsize{A Dissertation on}}\\
\renewcommand{\baselinestretch}{1.1}
\vspace{5mm}
{\Large\bf  {{Fractional Order Controller}}} \\
\renewcommand{\baselinestretch}{1.1}
\vspace{8mm}
\vspace{8mm}
{\normalsize\bf{Vishwakarma Institute of Technology, Pune}} \\
{\normalsize\textit{(An Autonomous Institute Affiliated to University of Pune)}}\\
\vspace{5mm}
{\normalsize{in partial fulfillment of the requirements for the award of the degree }} \\
%{\normalsize{for the degree of}} \\

\vspace{5mm}
{\Large\bf{Master of Engineering}} \\
%\normalsize{(M. Tech)}\\
\vspace{2mm}
{\normalsize{in}} \\
\vspace{2mm}
{\Large{Instrumentation and Control}} \\
{\large{(Process Instrumentation)}} \\
\vspace{4mm}
{\normalsize{by}} \\

\vspace{4mm}
\vspace{1mm}
\normalsize{(GR NO. 13M089)} \\

\vspace{10mm}
{\large{Under the guidance of}} \\

\vspace{3mm}

\vspace{10mm}
\includegraphics[width=1.25in]{vitlogo1.eps}\\%[.5in]
\vspace{15mm}
{\large \bf {Department of Instrumentation and Control Engineering}}\\
%\vspace{1mm}
{\large \bf {Vishwakarma Institute of Technology, Pune-411037}}\\

\vspace{3mm}
\large \bf {31 July 2014}
\end{center}

• The opening brace at line 33 (before \Large) isn't closed. And I don't understand why you are using braces after \bf. This control sequence isn't a macro with parameter. This is very often mistake of LaTeX users. – wipet Dec 13 '14 at 18:55

You aren't using \normalsize, \large, and \Large properly: they act as switches and affect everything in the current scope, not just the material in the subsequent { ... } brace group. The macro \bf isn't fully supported under LaTeX (it's a Plain-TeX command); use \bfseries instead. The instruction \renewcommand{\baselinestretch}{1.1} isn't working the way you're using it. I suggest you load the setspace package and issue the command \setstretch{1.1} instead. Finally, I would add the instruction \thispagestyle{empty} to the page in question, as title pages typically do not show a page number.

\documentclass[a4paper,12pt]{report}
\usepackage[demo]{graphicx} % omit 'demo' option in real document
\usepackage[margin=1in]{geometry} % choose margins suitably
\usepackage{setspace}  % for '\setstretch' macro
\begin{document}
\begin{center}
\setstretch{1.1}
A Dissertation on\\
\vspace{5mm}
{\Large\bfseries  Fractional Order Controller} \\
\vspace{8mm}
\vspace{8mm}
{\bfseries Vishwakarma Institute of Technology, Pune} \\
({\itshape An Autonomous Institute Affiliated to University of Pune})\\
\vspace{5mm}
in partial fulfillment of the requirements for the award of the degree \\
%{\normalsize{for the degree of}} \\

\vspace{5mm}
{\Large\bfseries Master of Engineering} \\
%\normalsize{(M. Tech)}\\
\vspace{2mm}
in \\
\vspace{2mm}
{\Large Instrumentation and Control } \\
{\large (Process Instrumentation) } \\
\vspace{4mm}
by \\

\vspace{4mm}
\vspace{1mm}
(GR NO. 13M089) \\

\vspace{10mm}
{\large Under the guidance of} \\

\vspace{3mm}

\vspace{10mm}
\includegraphics[width=1.25in]{vitlogo1.eps}\\%[.5in]
\vspace{15mm}
{\large \bfseries Department of Instrumentation and Control Engineering}\\
%\vspace{1mm}
{\large \bfseries Vishwakarma Institute of Technology, Pune-411037}\\

\vspace{3mm}
{\large \bfseries 31 July 2014}
\end{center}

\end{document}

• again i got same error – user68949 Dec 13 '14 at 19:18
• i run the code given by you, even i got same error – user68949 Dec 13 '14 at 19:19
• @user68949 - what's the error message, on which line does it occur, and which TeX distribution are you running? (I get no error or warning messages when running this code with MacTeX2014.) – Mico Dec 13 '14 at 19:37