在一个工程中创建自定义IP核源代码文件编辑好没有报错,但是添加源代码文件编译时出现了错误报错内容如下:

Vivado Commands
General Messages
[Common 17-180] Spawn failed: No error
[Common 17-180] Spawn failed: No error
Implementation
Place Design
[Place 30-415] IO Placement failed due to overutilization. This design contains 346 I/O ports
while the target device: 7z020 package: clg400, contains only 255 available user I/O. The target device has 255 usable I/O pins of which 0 are already occupied by user-locked I/Os.
To rectify this issue:
1. Ensure you are targeting the correct device and package. Select a larger device or different package if necessary.
2. Check the top-level ports of the design to ensure the correct number of ports are specified.
3. Consider design changes to reduce the number of I/Os necessary.
[Place 30-68] Instance axi_rreg0_IBUF[0]_inst (IBUF) is not placed
[Place 30-99] Placer failed with error: 'IO Clock Placer failed'
Please review all ERROR, CRITICAL WARNING, and WARNING messages during placement to understand the cause for failure.
[Common 17-69] Command failed: Placer could not place all instances
这样的报错该怎么解决,

在设计流程中出现了警告怎么解决?