matlab套接字出错

Question

我在Matlab中有一个与两个Android智能手机通信的脚本。以下是代码的相关部分：

% wait for a client
t = tcpip('0.0.0.0',8080,'NetworkRole','server');

%set read buffer
set(t,'InputBufferSize',6000);
set(t,'Timeout',3);

% open the socket
fopen(t);

%read the bytes
file=fread(t,6000,'uint8');

%do something with the file
[a,~]=find(file);
file((a(end))+1:end)=[]; %here is the problem

%close the socket
fclose(t);

有时，当客户端连接时，脚本会返回错误： Subscripts indices must either be real positive integer or logicals.

我不确定这是否是网络错误，或者我编写代码的方式是否有错误？